Stipa speciosa
 | This article relies largely or entirely on a single source. (April 2021) |
| Stipa speciosa | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Pooideae |
| Genus: | Stipa |
| Species: | S. speciosa
|
| Binomial name | |
| Stipa speciosa | |
| Synonyms | |
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Achnatherum speciosum | |
Stipa speciosa (syn. Achnatherum speciosum) is a species of grass known by the common name desert needlegrass.[1]: 1494 It is native to much of the south-western United States from California to Colorado, where it grows in dry areas, especially sagebrush habitat. It is also known from Mexico and parts of South America.
Description
[edit]This is a short perennial bunchgrass reaching a maximum height of 1–2 ft. The leaf blades are less than a millimeter wide and rolled along the edges. The bases are stiff and remain as the dense grass clump dries. The inflorescence is up to about 2 inches long and is dense and fluffy. Each spikelet is very hairy and has a bent awn up to about a centimeter long which is coated in long hairs.
The stiff awn and the sharp tip of the spikelet make the seeds hazardous for animals. The hairs on the seed help in catch in animal coats and drift on the wind for dispersal. The awn also twists when wet, helping the seed bury itself in the soil.
References
[edit]- ^ Jepson Manual, 2nd ed, 2012
External links
[edit]- Stipa
- Bunchgrasses of North America
- Bunchgrasses of South America
- Grasses of the United States
- Grasses of Mexico
- Native grasses of California
- Flora of Central Mexico
- Flora of Northwestern Mexico
- Flora of the Southwestern United States
- North American desert flora
- Flora of the California desert regions
- Flora of the Sonoran Deserts
- Flora of the Great Basin
- Natural history of the Mojave Desert
- Flora of California
- Flora of the Sierra Nevada (United States)
- Flora of Baja California
- Flora of Oregon
- Flora of New Mexico
- Flora of Southern America
- Plants used in Native American cuisine
- Pooideae stubs