Chamaerhodos

Bunge in C. F. von Ledebour
in C. F. von Ledebour, Fl. Altaica 1: 429. 1829.
Common names: Little rose
Etymology: Greek chamai, dwarf, and rhodon, rose, alluding to appearance of plants
Treatment appears in FNA Volume 9. Treatment on page 279. Mentioned on page 119, 120, 274, 304.

Herbs, biennial or short-lived [long-lived] perennial, [0.3–]0.6–3 dm, hispid-hirsute, soft-hairy, and stipitate-glandular [eglandular]; taproots woody, scaly. Stems 1(–10), reddish tinged [green], simple or branched throughout, branches ascending or erect. Leaves basal winter-persistent, basal and cauline, rosulate, alternate, pinnately compound or simple and deeply pinnatifid; stipules absent; petiole present; blade obovate, 1.5–4 cm, herbaceous, 2–4-ternate, cauline sessile or petioles to 2 mm, blade 1–2-pinnate or -pinnatifid, lobes linear-oblong, margins flat, entire, venation pinnate, 1 vein per lobe (lateral veins not seen), surfaces hairy, stipitate- [or sessile] glandular. Inflorescences terminal or often axillary, 10–many-flowered, crowded [sparse], flat-topped panicles; peduncles present; bracts present; bracteoles absent. Pedicels present or nearly absent [long-pedicellate]. Flowers 2–4[–4.5] mm diam.; epicalyx bractlets 5, reduced to bristles proximal to sepal bases; hypanthium campanulate, 1.5–2.5[–3.5] mm, exterior shiny-bristled, adaxially sparsely villous at rim; sepals 5, erect-ascending [recurved], ovate-lanceolate [triangular], bristle-tipped; petals 5, white, obovate or cuneate-oblong, apex emarginate; stamens 5(or 6), shorter than petals; torus absent; carpels 5–10(–20), glabrous, styles lateral; ovule 1. Fruits aggregated achenes, 1–6, olivaceous to blackish [reddish to purplish at base], ovoid-pyriform, 1.1–1.4[–1.6] mm, glabrous; hypanthium persistent; sepals persistent, erect-ascending (recurved); styles persistent. x = 7.

Distribution

North America, Asia.

Discussion

Species 7 (1 in the flora).

Selected References

None.

... more about "Chamaerhodos"
Joshua C. Springer +  and Bruce D. Parfitt† +
Bunge in C. F. von Ledebour +
Little rose +
North America +  and Asia. +
Greek chamai, dwarf, and rhodon, rose, alluding to appearance of plants +
in C. F. von Ledebour, Fl. Altaica +
Chamaerhodos +
Rosaceae tribe Potentilleae +