Difference between revisions of "Eriogonum hirtiflorum"

A. Gray ex S. Watson

Proc. Amer. Acad. Arts 12: 259. 1877.

Common names: Hairy-flower wild buckwheat
Endemic
Synonyms: Oxytheca hirtiflora (A. Gray ex S. Watson) Greene
Treatment appears in FNA Volume 5. Treatment on page 410. Mentioned on page 381.
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|common_names=Hairy-flower wild buckwheat
 
|common_names=Hairy-flower wild buckwheat
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|name=Oxytheca hirtiflora
 
|name=Oxytheca hirtiflora
 
|authority=(A. Gray ex S. Watson) Greene
 
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|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Ganysma;Eriogonum hirtiflorum
 
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Ganysma;Eriogonum hirtiflorum
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name=Eriogonum hirtiflorum
 
name=Eriogonum hirtiflorum
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|publication title=Proc. Amer. Acad. Arts
 
|publication title=Proc. Amer. Acad. Arts
 
|publication year=1877
 
|publication year=1877
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|special status=Endemic
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|subfamily=Polygonaceae subfam. Eriogonoideae
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|genus=Eriogonum
 
|genus=Eriogonum

Latest revision as of 22:14, 5 November 2020

Herbs, spreading, annual, 0.5–1.5 dm, glandular, greenish or reddish. Stems: caudex absent; aerial flowering stems mostly erect, solid, not fistulose, 0.2–0.5 dm, glandular. Leaves basal and cauline; basal: petiole 0.5–2 cm, glabrous, slightly winged, ciliate, blade obovate to spatulate, 1–2.5 × 0.4–0.8 cm, glabrous, margins ciliate; cauline sessile, blade lanceolate, 0.1–0.5 × 0.1–0.3 cm, similar to basal blade. Inflorescences cymose, usually diffuse, 5–13 × 5–25 cm; branches glandular; bracts 3, scalelike, 0.5–1.5 × 1–2 mm. Peduncles absent or erect, straight, filiform, 0.1–0.5 cm, glandular. Involucres turbinate, 0.8–1 × 0.7–0.9 mm, sparsely hispid; teeth 4, erect or nearly so, 0.4–0.8 mm. Flowers 2, 0.8–1.1 mm; perianth pink to reddish, hirsutulous with stiff, white, hooked hairs; tepals monomorphic, oblong; stamens included, 0.5–0.8 mm; filaments glabrous. Achenes brown, lenticular, 1–1.3 mm, glabrous; beak exserted beyond tepals.


Phenology: Flowering May–Oct.
Habitat: Sandy to gravelly flats and slopes, mixed grassland and chaparral communities, oak and montane conifer woodlands
Elevation: 200-2000 m

Discussion

Eriogonum hirtiflorum is found in scattered locations throughout much of California (Amador, Colusa, Fresno, Glenn, Kern, Lake, Los Angeles, Madera, Mariposa, Mendocino, Monterey, San Bernardino, San Benito, Santa Cruz, Siskiyou, Tulare, Tuolumne, Trinity, and Ventura counties) in the Coast Ranges and along the western slope of the Sierra Nevada. The species rarely is common at any single location and, being small and often obscure, it is frequently missed by collectors.

Selected References

None.

Lower Taxa

None.
... more about "Eriogonum hirtiflorum"
James L. Reveal +
A. Gray ex S. Watson +
Eriogonum sect. Ganysma +
Hairy-flower wild buckwheat +
200-2000 m +
Sandy to gravelly flats and slopes, mixed grassland and chaparral communities, oak and montane conifer woodlands +
Flowering May–Oct. +
Proc. Amer. Acad. Arts +
Oxytheca hirtiflora +
Eriogonum hirtiflorum +
Eriogonum subg. Ganysma +
species +