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|In Elena Gallegos Picnic Area, Albuquerque, NM|
Linum lewisii (Linum perenne var. lewisii) (Lewis flax, blue flax or prairie flax) is a perennial plant in the family Linaceae, native to western North America from Alaska south to Baja California, and from the Pacific Coast east to the Mississippi River. It grows on ridges and dry slopes, from sea level in the north up to 3000 m altitude in the south of the species' range.
It is a slender herbaceous plant growing to 90 cm tall, with spirally arranged narrow lanceolate leaves 1–2 cm long. The flowers are pale blue or lavender to white, 1.5–3 cm diameter, with five petals.
Linum lewisii is extremely durable, even aggressive, in favorable conditions, successfully seeding even into established lawns.
- "The Plant List: A Working List of All Plant Species". Retrieved 4 October 2014.
- Jepson Flora Project: Linum lewisii
- Germplasm Resources Information Network: Linum lewisii
- USDA Plant Profile: Linum lewisii
- Mojave Desert Wildflowers, Jon Mark Stewart, 1998, pg. 141
- Illinois wildflowers: Linum perenne lewisii
- Fine gardening: Linum lewisii
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