Chamaerhodos erecta

(Linnaeus) Bunge

in C. F. von Ledebour, Fl. Altaica 1: 430. 1829.

Illustrated
Basionym: Sibbaldia erecta Linnaeus Sp. Pl. 1: 284. 1753
Synonyms: Chamaerhodos erecta subsp. nuttallii (Pickering ex Rydberg) Hultén C. erecta var. parviflora (Nuttall) C. L. Hitchcock C. nuttallii
Treatment appears in FNA Volume 9. Treatment on page 280.

Leaves: basal petiole to 30 mm; lobes of cauline leaves 5–18 × 0.2–1 mm; surfaces white-hairy, stipitate-glandular, hairs rarely antrorsely barbed. Flowers: sepals 1.8–2.5 mm; petals 1.8–2.5 × 0.5–1.1 mm. 2n = 14.


Phenology: Flowering Jun–Aug; fruiting Jul–Sep.
Habitat: Prairies, dry hilltops, knolls, outcrops, buttes, rocky and sandy soil or gravel, exposed and disturbed sites
Elevation: 300–3200 m

Distribution

V9 453-distribution-map.jpg

Alta., B.C., Man., N.W.T., Ont., Sask., Yukon, Alaska, Colo., Mich., Minn., Mont., N.Dak., S.Dak., Utah., Wyo., Asia (Mongolia, Russian Far East, Siberia).

Discussion

No clear distinction could be made among infraspecific taxa of Chamaerhodos erecta. Purportedly distinguishing characters, for example petal length relative to sepal length, vary throughout the range of the species. Stems may be in tufts, single or multiple (one North Dakota specimen exhibited leafy tufts with ten branches from the base). Most often, specimens are single-stemmed, branching distal to the middle, and producing flat-topped inflorescences.

Selected References

None.

Lower Taxa

None.
... more about "Chamaerhodos erecta"
Joshua C. Springer +  and Bruce D. Parfitt† +
(Linnaeus) Bunge +
Sibbaldia erecta +
Alta. +, B.C. +, Man. +, N.W.T. +, Ont. +, Sask. +, Yukon +, Alaska +, Colo. +, Mich. +, Minn. +, Mont. +, N.Dak. +, S.Dak. +, Utah. +, Wyo. +, Asia (Mongolia +, Russian Far East +  and Siberia). +
300–3200 m +
Prairies, dry hilltops, knolls, outcrops, buttes, rocky and sandy soil or gravel, exposed and disturbed sites +
Flowering Jun–Aug +  and fruiting Jul–Sep. +
in C. F. von Ledebour, Fl. Altaica +
Illustrated +
Chamaerhodos erecta subsp. nuttallii +, C. erecta var. parviflora +  and C. nuttallii +
Chamaerhodos erecta +
Chamaerhodos +
species +