Horkeliella congdonis

(Rydberg) Rydberg

in N. L. Britton et al., N. Amer. Fl. 22: 283. 1908.

Common names: Congdon’s horkeliella or false horkelia
Endemic
Basionym: Horkelia congdonis Rydberg Bull. Torrey Bot. Club 26: 543. 1899
Synonyms: H. purpurascens subsp. congdonis (Rydberg) Abrams Ivesia purpurascens subsp. congdonis (Rydberg) D. D. Keck Potentilla purpurascens var. congdonis (Rydberg) Jepson
Treatment appears in FNA Volume 9. Treatment on page 271.

Plants green, non-glandular hairs sparse, not obscuring abundant stipitate-glandular ones. Basal leaves (5–)8–25(–27) cm; petiole 4–10 cm; leaflets 25–35 per side, 2–6 mm, divided into 5–10 ultimate segments, sparsely villous, more densely so marginally, minutely orangish sessile-glandular. Cauline leaves 2–7, 2–10 cm. Inflorescences ± congested. Pedicels usually 2 mm (proximalmost to 20 mm). Flowers 15 mm diam.; epicalyx bractlets lanceolate, 2.5–5(–6) mm; sepals 4–8(–9) mm, villous, short-stipitate-glandular; petals narrowly oblong-oblanceolate, 3–6(–6.5) mm; filaments 1.5–3 mm, filament opposite center of sepal longer than those on either side, anthers 1 mm; styles 2–5 mm.


Phenology: Flowering late summer.
Habitat: Dry granitic meadows, in sagebrush communities, montane to subalpine conifer woodlands
Elevation: 1500–3100 m

Discussion

Horkeliella congdonis is known from the eastern foothills and slopes of the Sierra Nevada northeast to the Sweetwater Mountains and the Glass Mountain area of Mono and northern Inyo counties. It generally forms dense clumps that are notably more glandular than H. purpurascens.

Selected References

None.

Lower Taxa

None.
... more about "Horkeliella congdonis"
Barbara Ertter +  and James L. Reveal +
(Rydberg) Rydberg +
Horkelia congdonis +
Congdon’s horkeliella or false horkelia +
1500–3100 m +
Dry granitic meadows, in sagebrush communities, montane to subalpine conifer woodlands +
Flowering late summer. +
in N. L. Britton et al., N. Amer. Fl. +
H. purpurascens subsp. congdonis +, Ivesia purpurascens subsp. congdonis +  and Potentilla purpurascens var. congdonis +
Horkeliella congdonis +
Horkeliella +
species +