Difference between revisions of "Eriogonum gracillimum"

S. Watson in W. H. Brewer et al.

in W. H. Brewer et al., Bot. California 2: 480. 1880.

Common names: Rose-and-white wild buckwheat
Synonyms: Eriogonum angulosum subsp. gracillimum (S. Watson) S. Stokes Eriogonum angulosum var. gracillimum (S. Watson) M. E. Jones Eriogonum angulosum subsp. victorense (M. E. Jones) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 412. Mentioned on page 381, 411.
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Revision as of 22:38, 16 December 2019

Herbs, erect to spreading, annual, 1–5 dm, thinly tomentose, greenish, grayish, or reddish. Stems: caudex absent; aerial flowering stems erect, not striated but sometimes angled, solid, not fistulose, 0.1–0.8 dm, tomentose. Leaves basal and cauline; basal: petiole 0.5–1 cm, floccose; basal blade oblanceolate to oblong, 2–4 × 0.3–1 cm, tomentose abaxially, floccose to glabrate and grayish or greenish adaxially, margins crenulate, often slightly revolute; cauline sessile, blade narrowly oblong, 0.5–2(–6) × 0.2–0.8(–1.5) cm, similar to basal blade. Inflorescences cymose, mostly open, 5–35 × 5–35 cm; branches thinly tomentose; bracts 3, scalelike, 1–3 × 1–2.5 mm. Peduncles spreading, straight, capillary, 0.8–2.5 cm, glabrous. Involucres campanulate, 1.8–2 × 2–3 mm, glandular-puberulent, not densely tomentose adaxially; teeth 5, erect, 0.4–0.8 mm. Flowers 2–2.5 mm; perianth white to rose, glandular-puberulent; tepals monomorphic, oblong to elliptic; stamens included, 1–2 mm; filaments pilose proximally. Achenes light brown, 3-gonous, 1–1.2(–1.5) mm, glabrous. 2n = 40.


Phenology: Flowering year-round.
Habitat: Sandy to gravelly or clayey flats and slopes, mixed grassland, chaparral, saltbush, and creosote bush communities, oak and conifer woodlands
Elevation: 0-1100 m

Discussion

Eriogonum gracillimum is found in the Coast, Transverse, and scattered mountain desert ranges in Fresno, Inyo, Kern, Kings, Los Angeles, Madera, Merced, Monterey, Riverside, San Benito, San Bernardino, San Diego, San Luis Obispo, Santa Barbara, and Tulare counties. The species is often common and occasionally even weedy.

Selected References

None.

Lower Taxa

None.
... more about "Eriogonum gracillimum"
James L. Reveal +
S. Watson in W. H. Brewer et al. +
Eriogonum sect. Ganysma +
Rose-and-white wild buckwheat +
0-1100 m +
Sandy to gravelly or clayey flats and slopes, mixed grassland, chaparral, saltbush, and creosote bush communities, oak and conifer woodlands +
Flowering year-round. +
in W. H. Brewer et al., Bot. California +
Eriogonum angulosum subsp. gracillimum +, Eriogonum angulosum var. gracillimum +  and Eriogonum angulosum subsp. victorense +
Eriogonum gracillimum +
Eriogonum subg. Ganysma +
species +