Eriogonum longifolium var. harperi

(Goodman) Reveal

Sida 3: 197. 1968.

Common names: Harper’s wild buckwheat
Endemic
Basionym: Eriogonum harperi Goodman Bull. Torrey Bot. Club 74: 329, figs. 1–3. 1947
Treatment appears in FNA Volume 5. Treatment on page 330. Mentioned on page 329.

Plants 10–18 dm, thinly tomentose. Leaves: basal leaf blade 10–15 × 1.5–2.5 cm, tomentose abaxially, sparsely floccose or glabrous adaxially. Peduncles 0.3–0.8 cm. Involucres turbinate, 3–3.5 × 1.5–2.5 mm. Flowers 5–7 mm, including 0.5–1(–1.2) mm stipelike base. Achenes 4–4.5 mm. 2n = 40.


Phenology: Flowering Jun–Sep.
Habitat: Sandy to gravelly, often calcareous flats, bluffs, outcrops, and slopes, oak and conifer woodlands
Elevation: 100-300 m

Discussion

Variety harperi is known only from scattered populations in Alabama (Colbert and Franklin counties), Kentucky (Christian County), and Tennessee (DeKalb, Putnam, Smith, and Wilson counties). The Kentucky record is based on a report indicating that the plant had been extirpated there.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Goodman) Reveal +
Eriogonum harperi +
Harper’s wild buckwheat +
Ala. +, Ky. +  and Tenn. +
100-300 m +
Sandy to gravelly, often calcareous flats, bluffs, outcrops, and slopes, oak and conifer woodlands +
Flowering Jun–Sep. +
Eriogonum longifolium var. harperi +
Eriogonum longifolium +
variety +