Gayophytum diffusum subsp. parviflorum

H. Lewis & Szweykowski

Brittonia 16: 386, figs. 5B, 17B. 1964.

Synonyms: Gayophytum diffusum var. strictipes (Hooker) Dorn G. lasiospermum Greene G. lasiospermum var. hoffmannii Munz G. nuttallii var. abramsii Munz G. nuttallii var. intermedium (Rydberg) Munz G. ramosissimum var. strictipes Hooker
Treatment appears in FNA Volume 10.
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Flowers: sepals 0.9–2 mm; petals 1.2–3 mm; stigma subglobose, surrounded by anthers at anthesis. 2n = 28.


Phenology: Flowering Jun–Oct.
Habitat: Open pine forests, sagebrush slopes, dry margins of meadows.
Elevation: 800–3700 m.

Distribution

B.C., Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo., Mexico (Baja California).

Discussion

Subspecies parviflorum is extremely variable and may sometimes closely resemble diploid species Gayophytum decipiens, G. heterozygum, G. oligospermum, and G. ramosissimum, the first of which are hypothesized to have been involved in its origin and variation (H. Lewis and J. Szweykowski 1964).

Selected References

None.

Lower Taxa

None.
Harlan Lewis† +  and Warren L. Wagner +
H. Lewis & Szweykowski +
B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wyo. +  and Mexico (Baja California). +
800–3700 m. +
Open pine forests, sagebrush slopes, dry margins of meadows. +
Flowering Jun–Oct. +
Gayophytum diffusum var. strictipes +, G. lasiospermum +, G. lasiospermum var. hoffmannii +, G. nuttallii var. abramsii +, G. nuttallii var. intermedium +  and G. ramosissimum var. strictipes +
Gayophytum diffusum subsp. parviflorum +
Gayophytum diffusum +
subspecies +