Potentilla rhyolitica var. chiricahuensis

Ertter

J. Bot. Res. Inst. Texas 1: 52, fig. 1H. 2007.

Common names: Chiricahua cinquefoil
Conservation concernEndemic
Treatment appears in FNA Volume 9. Treatment on page 186.

Stems 0.2–1(–1.5) dm. Leaves green; long hairs of petioles 1–2(–3) mm; leaflets: hairs common, rarely dense. Flowers 1–5; filaments 2–3 mm; carpels 5–10, styles (2–)2.5–3 mm. Achenes 2 mm, smooth.


Phenology: Flowering May–Jun.
Habitat: Rocky openings, in mixed conifer forests
Elevation: 2700–2900 m

Discussion

Of conservation concern.

Variety chiricahuensis is known only from the Chiricahua Mountains (Cochise County). It differs from the typical variety in being less densely hairy, with somewhat longer and coarser hairs and larger achenes. It is also less likely to be found rooted in outcrops, favoring rocky flats.

Selected References

None.

Lower Taxa

None.