Ceanothus tomentosus: Difference between revisions

Ceanothus tomentosus
Conservation status
	; Vulnerable (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Rhamnaceae
Genus:	Ceanothus
Species:	C. tomentosus
Binomial name
	Ceanothus tomentosus; Parry

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Ceanothus tomentosus, with the common name woollyleaf ceanothus, is a species of shrub in the family Rhamnaceae. It is native to several of the mountain ranges in California and Baja California.

Description

Ceanothus tomentosus is an erect shrub (occasionally tree-like) approaching 3 m in maximum height. The woody parts are reddish or brown, especially when new. The evergreen leaves are alternately arranged, elliptic to oval in shape, dark green and with short hairs on the top and woolly on the undersides. The leaves have a petiole 1 to 3 mm long, with the leaf blade 10 to 25 mm long, 5 to 12 mm wide. The margins of the leaves are serrated with 40 to 60 tiny glandular teeth. The inflorescence is a cluster several centimeters long of pale blue to deep blue flowers. The fruit is a lobed capsule a few millimeters long which is sticky when new.^[1]^[2]

Characteristics

Diagnostic features include the leaves being 3-ribbed from the base, the leaf veins being more or less obscured by the hairs, and the teeth on the edge of the leaf being tipped with glands, which sets it apart from plants like Ceanothus cyaneus. The twigs on this species are also flexible and not thorn-like, as opposed to species like Ceanothus leucodermis with rigid, thorn-like twigs.^[1]^[2]^[3]

Taxonomy and phenology

This species was described by Charles Christopher Parry in 1889. It is within the Ceanothus subgenus Ceanothus.^[2] Although the Ceanothus subgenera vary in their preference to sprout from lignotubers (resprouting) versus seeds (nonsprouting) after fire, Ceanothus tomentosus exhibits both resprouting and nonsprouting plants across its range. Plants in the Sierra Nevada section of the distribution resprout after fire, while plants in the Southern California area of distribution are nonsprouters. Nonsprouting populations tended to have an earlier onset of flowering as well.^[4]

Distribution and habitat

This species is distributed in both the United States and Mexico. In the United States, it is found in the state of California, in the Peninsular Ranges of Southern California, but also with a disjunct distribution in a portion of the north and central Sierra Nevada and its foothills.^[1] In Mexico, this species is found in the northwestern part of Baja California, from Tijuana to the southern end of the Sierra de San Pedro Martir.^[5]

This plant primarily occurs on open sites on slopes, ridges, chaparral, and coniferous forest.^[2]

References

^ ^a ^b ^c Burge, Dylan O.; Wilken, Dieter H. (2020). "Ceanothus tomentosus". Jepson eFlora (8 ed.). Jepson Flora Project. Retrieved 20 January 2022.{{cite web}}: CS1 maint: url-status (link)
^ ^a ^b ^c ^d Schmidt, Clifford L.; Wilken, Dieter. "Ceanothus tomentosus". Flora of North America. 12: 89.
^ "Ceanothus key to species". Jepson eFlora. Retrieved 20 January 2021.{{cite web}}: CS1 maint: url-status (link)
^ Schwilk, Dylan W.; Ackerly, David D. (2005). "Is there a cost to resprouting? Seedling growth rate and drought tolerance in sprouting and nonsprouting Ceanothus (Rhamnaceae)". American Journal of Botany. 92 (3): 404–410. doi:10.3732/ajb.92.3.404. ISSN 1537-2197.
^ Rebman, J. P.; Gibson, J.; Rich, K. (2016). "Annotated checklist of the vascular plants of Baja California, Mexico" (PDF). San Diego Society of Natural History. 45: 242.

External links

This Rhamnaceae article is a stub. You can help Wikipedia by expanding it.

[:0-1] Burge, Dylan O.; Wilken, Dieter H. (2020). "Ceanothus tomentosus". Jepson eFlora (8 ed.). Jepson Flora Project. Retrieved 20 January 2022.{{cite web}}: CS1 maint: url-status (link)

[:1-2] Schmidt, Clifford L.; Wilken, Dieter. "Ceanothus tomentosus". Flora of North America. 12: 89.

[3] "Ceanothus key to species". Jepson eFlora. Retrieved 20 January 2021.{{cite web}}: CS1 maint: url-status (link)

[4] Schwilk, Dylan W.; Ackerly, David D. (2005). "Is there a cost to resprouting? Seedling growth rate and drought tolerance in sprouting and nonsprouting Ceanothus (Rhamnaceae)". American Journal of Botany. 92 (3): 404–410. doi:10.3732/ajb.92.3.404. ISSN 1537-2197.

[:2-5] Rebman, J. P.; Gibson, J.; Rich, K. (2016). "Annotated checklist of the vascular plants of Baja California, Mexico" (PDF). San Diego Society of Natural History. 45: 242.

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@@ Line 1: / Line 1: @@
 {{Short description|Species of flowering plant}}
 {{Speciesbox
-|image = Ceanothus tomentosus 01.jpg
+| image = Ceanothus tomentosus 01.jpg
+| status = G3
-|genus = Ceanothus
+| status_system = TNC
-|species = tomentosus
+| genus = Ceanothus
-|authority = [[Charles Christopher Parry|Parry]]
+| species = tomentosus
+| authority = [[Charles Christopher Parry|Parry]]
 }}
 '''''Ceanothus tomentosus''''', with the common name '''woollyleaf ceanothus''', is a species of [[shrub]] in the family [[Rhamnaceae]]. It is native to several of the mountain ranges in [[California]] and [[Baja California]].
+==Description==
+''Ceanothus tomentosus'' is an erect [[shrub]] (occasionally tree-like) approaching 3 m in maximum height. The [[Wood|woody]] parts are reddish or brown, especially when new. The [[evergreen]] leaves are alternately arranged, elliptic to oval in [[Glossary of leaf morphology|shape]], dark green and with short [[Trichome|hairs]] on the top and woolly on the undersides. The leaves have a [[Petiole (botany)|petiole]] 1 to 3 mm long, with the leaf blade 10 to 25 mm long, 5 to 12 mm wide. The margins of the leaves are [[Serration|serrated]] with 40 to 60 tiny glandular teeth. The [[inflorescence]] is a cluster several centimeters long of pale blue to deep blue flowers. The fruit is a lobed capsule a few millimeters long which is sticky when new.<ref name=":0">{{Cite web|last=Burge|first=Dylan O.|last2=Wilken|first2=Dieter H.|date=2020|title=Ceanothus tomentosus|url=https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=18502|url-status=live|access-date=20 January 2022|website=Jepson eFlora|publisher=Jepson Flora Project|edition=8}}</ref><ref name=":1">{{Cite journal|last=Schmidt|first=Clifford L.|last2=Wilken|first2=Dieter|title=Ceanothus tomentosus|url=http://beta.floranorthamerica.org/Ceanothus_tomentosus|journal=Flora of North America|volume=12|pages=89|via=}}</ref>
+=== Characteristics ===
+Diagnostic features include the leaves being 3-ribbed from the base, the leaf veins being more or less obscured by the [[Trichome|hairs]], and the teeth on the edge of the leaf being tipped with [[Gland (botany)|glands]], which sets it apart from plants like ''[[Ceanothus cyaneus]]''. The twigs on this species are also flexible and not thorn-like, as opposed to species like ''Ceanothus leucodermis'' with rigid, thorn-like twigs.<ref name=":0">{{Cite web|last=Burge|first=Dylan O.|last2=Wilken|first2=Dieter H.|date=2020|title=Ceanothus tomentosus|url=https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=18502|url-status=live|access-date=20 January 2022|website=Jepson eFlora|publisher=Jepson Flora Project|edition=8}}</ref><ref name=":1">{{Cite journal|last=Schmidt|first=Clifford L.|last2=Wilken|first2=Dieter|title=Ceanothus tomentosus|url=http://beta.floranorthamerica.org/Ceanothus_tomentosus|journal=Flora of North America|volume=12|pages=89|via=}}</ref><ref>{{Cite web|title=Ceanothus key to species|url=https://ucjeps.berkeley.edu/eflora/eflora_keys.php?key=8834|url-status=live|access-date=20 January 2021|website=Jepson eFlora}}</ref>
+== Taxonomy and phenology ==
+This species was described by [[Charles Christopher Parry]] in 1889. It is within the ''[[Ceanothus]]'' subgenus ''Ceanothus''.<ref name=":1">{{Cite journal|last=Schmidt|first=Clifford L.|last2=Wilken|first2=Dieter|title=Ceanothus tomentosus|url=http://beta.floranorthamerica.org/Ceanothus_tomentosus|journal=Flora of North America|volume=12|pages=89|via=}}</ref> Although the ''Ceanothus'' subgenera vary in their preference to sprout from [[Lignotuber|lignotubers]] (resprouting) versus seeds (nonsprouting) after [[Wildfire|fire]], ''Ceanothus tomentosus'' exhibits both resprouting and nonsprouting plants across its range. Plants in the [[Sierra Nevada]] section of the distribution resprout after fire, while plants in the [[Southern California]] area of distribution are nonsprouters. Nonsprouting populations tended to have an earlier onset of flowering as well.<ref>{{Cite journal|last=Schwilk|first=Dylan W.|last2=Ackerly|first2=David D.|date=2005|title=Is there a cost to resprouting? Seedling growth rate and drought tolerance in sprouting and nonsprouting Ceanothus (Rhamnaceae)|url=https://onlinelibrary.wiley.com/doi/abs/10.3732/ajb.92.3.404|journal=American Journal of Botany|language=en|volume=92|issue=3|pages=404–410|doi=10.3732/ajb.92.3.404|issn=1537-2197}}</ref>
 ==Distribution and habitat==
+This species is distributed in both the [[United States]] and [[Mexico]]. In the United States, it is found in the state of California, in the [[Peninsular Ranges]] of [[Southern California]], but also with a disjunct distribution in a portion of the north and central [[Sierra Nevada]] and its foothills.<ref name=":0">{{Cite web|last=Burge|first=Dylan O.|last2=Wilken|first2=Dieter H.|date=2020|title=Ceanothus tomentosus|url=https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=18502|url-status=live|access-date=20 January 2022|website=Jepson eFlora|publisher=Jepson Flora Project|edition=8}}</ref> In Mexico, this species is found in the northwestern part of [[Baja California]], from [[Tijuana]] to the southern end of the [[Sierra de San Pedro Mártir|Sierra de San Pedro Martir]].<ref name=":2">{{Cite journal|last=Rebman|first=J. P.|last2=Gibson|first2=J.|last3=Rich|first3=K.|date=2016|title=Annotated checklist of the vascular plants of Baja California, Mexico|url=http://sdplantatlas.org/pdffiles/BajaChecklist2016.pdf|journal=San Diego Society of Natural History|volume=45|pages=242}}</ref>
-''Ceanothus tomentosus'' grows in dry, shrubby habitat such as [[chaparral]].  The [[habitat]] includes the [[Sierra Nevada (U.S.)|Sierra Nevada]] and the [[Southern California]] [[Peninsular Ranges]].
+This plant primarily occurs on open sites on slopes, ridges, chaparral, and coniferous forest.<ref name=":1">{{Cite journal|last=Schmidt|first=Clifford L.|last2=Wilken|first2=Dieter|title=Ceanothus tomentosus|url=http://beta.floranorthamerica.org/Ceanothus_tomentosus|journal=Flora of North America|volume=12|pages=89|via=}}</ref>
-==Description==
-''Ceanothus tomentosus'' is an erect shrub approaching three meters in maximum height. The woody parts are reddish, especially when new. The evergreen leaves are alternately arranged, oval in shape, dark green and slightly hairy on top and woolly on the undersides. They are edged with tiny glandular teeth. The [[inflorescence]] is a cluster several centimeters long of white to deep blue flowers. The fruit is a lobed capsule a few millimeters long which is sticky when new.
+== References ==
+<references />
 ==External links==