Neostapfia

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Colusa grass
Neostapfia.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Poaceae
Subfamily: Chloridoideae
Genus: Neostapfia
Burtt Davy
Species: N. colusana
Binomial name
Neostapfia colusana
Burtt Davy [1]
Synonyms[2]
  • Stapfia Burtt Davy 1898, illegitimate name not Chodat 1897 (a green alga in family Tetrasporaceae)
  • Davyella Hack.
  • Stapfia colusana Burtt Davy
  • Anthochloa colusana (Burtt Davy) Scribn.
  • Davyella colusana (Burtt Davy) Hack.

Neostapfia is a genus of endemic Californian bunchgrasses, in the Chloridoideae subfamily of the Poaceae (grass) family. [3] [1][4][5][6] The only known species is Neostapfia colusana, with the common name Colusa grass.[1]

Distribution[edit]

Neostapfia colusana is endemic to the Central Valley of California, in the northern section's Sacramento Valley and in the southern section's San Joaquin Valley. [1] The bunchgrass grows in vernal pools, which are seasonal shallow freshwater ponds.

It is native to the Central Valley counties of Glenn, Colusa, Yolo, Solano, Stanislaus, and Merced. [7] [8]

This rare grass is a federally listed threatened species in the United States.[9] [3]

Description[edit]

Neostapfia colusana is a clumping bunchgrass with distinctive cylindrical inflorescences covered in flat spikelets.

The inflorescences are said to resemble tiny ears of corn. They fruit in grains covered in a gluey secretion, and when a plant is mature each clump becomes brown and sticky with the exudate.

The genus was named for the botanist Otto Stapf.

Conservation[edit]

The plant is limited to vernal pool habitats, a type of ecosystem which is increasingly rare as Central Valley land is consumed by development and agriculture, and damaged by flood control regimes and other alterations of hydrology.[10]

See also[edit]

References[edit]

External links[edit]