Drymocallis glandulosa var. reflexa

(Greene) Ertter

J. Bot. Res. Inst. Texas 1: 43. 2007.

Common names: Greene’s drymocallis or wood beauty
Basionym: Potentilla glandulosa var. reflexa Greene Fl. Francisc., 65. 1891
Synonyms: Drymocallis glandulosa subsp. reflexa (Greene) Soják P. glandulosa subsp. reflexa (Greene) D. D. Keck
Treatment appears in FNA Volume 9. Treatment on page 293. Mentioned on page 287, 292.

Stems 1.5–7.5 dm, base 1.5–3 mm diam. Leaves: basal (3–)6–20(–30) cm, leaflet pairs 3(–4); terminal leaflet ± broadly obovate, (1–)1.5–5(–7) × 1–3 cm, teeth usually double, rarely single, 6–16 per side, apex rounded to obtuse; cauline well developed or reduced, leaflet pairs 2–3. Inflorescences (2–)10–30-flowered, ± leafy or not, usually wide, branch angles (15–)25–55°. Pedicels 2–10 (proximal to 20) mm. Flowers: epicalyx bractlets narrowly elliptic, 1.5–4 × 0.5–1(–1.5) mm; sepals reflexed, (3–)4–6(–8) mm, apex usually obtuse, sometimes acute; petals reflexed, yellow, narrowly ovate or obovate, 3–4(–5) × 1.5–3 mm; filaments 0.5–1.5(–2) mm. Achenes 0.9–1.3 mm. 2n = 14.


Phenology: Flowering May–Aug.
Habitat: Moist, somewhat shaded places, often somewhat disturbed
Elevation: 400–2600 m

Distribution

V9 474-distribution-map.jpg

Calif., Nev., Oreg., Mexico (Baja California).

Discussion

At its morphologic extreme, var. reflexa is distinctive in its small, elliptic-oblanceolate, reflexed yellow petals, and widely branched inflorescences; however, in northern California and southern Oregon, var. reflexa and var. glandulosa completely intergrade. As circumscribed here, var. reflexa occurs at low to middle elevations in the mountains from northern Baja California, Mexico, and the Peninsular and Transverse ranges of southern California, through the Sierra Nevada to the mountains of northern California, barely entering adjacent Nevada and Oregon. Some disjunct collections from central Idaho approach this variety; their optimal disposition remains unclear.

Selected References

None.

Lower Taxa

None.
Barbara Ertter +
(Greene) Ertter +
Potentilla glandulosa var. reflexa +
Greene’s drymocallis or wood beauty +
Calif. +, Nev. +, Oreg. +  and Mexico (Baja California). +
400–2600 m +
Moist, somewhat shaded places, often somewhat disturbed +
Flowering May–Aug. +
J. Bot. Res. Inst. Texas +
Illustrated +
Drymocallis glandulosa subsp. reflexa +  and P. glandulosa subsp. reflexa +
Drymocallis glandulosa var. reflexa +
Drymocallis glandulosa +
variety +