Mitella breweri |
Mitella pentandra |
|
---|---|---|
Brewer's miterwort, Brewer's mitrewort |
five-stamen mitrewort, fivestamen miterwort |
|
Habit | Plants not stoloniferous. | Plants sometimes stoloniferous. |
Flowering stems | 8–25(–40) cm. |
8–48(–60) cm. |
Leaves | petiole 1.5–7.5(–12) cm, subglabrous or short stipitate-glandular and sparsely long stipitate-glandular, longer hairs spreading, reddish brown; blade broadly cordate to reniform, usually shorter than, sometimes ± as long as wide, 1.5–7.9 × 1.5–11 cm, margins shallowly 7-, 9-, or 11-lobed, singly or doubly crenate-dentate, glabrous or irregularly ciliate, apex of terminal lobe rounded, surfaces glabrous or sparsely short stipitate-glandular and sparsely long stipitate-glandular; cauline leaves absent. |
petiole (0.9–)1.5–8.5(–14) cm, subglabrous or sparsely short stipitate-glandular and, sometimes, sparsely long stipitate-glandular, longer hairs spreading to retrorse, white, tan, or brown; blade ovate-cordate, ± as long as wide, (1–)2.3–8.5 × (1–)2.1–8 cm, margins shallowly (3-), 5-, 7-, or 9-lobed, doubly crenate-dentate, glabrous, apex of terminal lobe acute to obtuse, surfaces subglabrous or sparsely long stipitate-glandular; cauline leaves usually absent, sometimes 1, proximal or distal, sessile or petiolate, blade 0.2–3 × 0.2–2.2 cm. |
Inflorescences | 1–2, densely (6–)20–40(–60)-flowered, 1–2(–3) flowers per node, not secund, 8–25(–40) cm, glabrous or sparsely arachnoid-pilose proximally, glandular-puberulent distally. |
1–3(–4), remotely 6–25-flowered, 1–2 flowers per node, not secund, 8–48(–60) cm, glabrous, subglabrous, or sparsely short stipitate-glandular proximally, short stipitate-glandular distally. |
Pedicels | 1–2 mm, short stipitate-glandular. |
1.5–5(–8) mm, short stipitate-glandular. |
Flowers | hypanthium broadly saucer-shaped, 0.8–1.6 × 2.5–3.5 mm; sepals spreading, yellowish green or greenish, triangular to broadly triangular, 0.7–1 × 0.9–1.9 mm; petals greenish yellow or greenish, (4–)7–11-lobed, 1.5–2 mm, lobes linear, lateral lobes spreading; stamens 5, opposite sepals; filaments white or greenish, 0.1–0.2 mm; anthers 0.1–0.2 × 0.2–0.5 mm; ovary nearly completely inferior; styles divergent, flattened, 0.1–0.2 mm; stigmas 2-lobed. |
hypanthium broadly saucer-shaped, (0.6–)0.8–2 × (1.7–)2–2.8 mm; sepals spreading or recurved, greenish yellow or greenish, triangular to broadly triangular, 0.6–1.1 × 0.7–1.2 mm; petals greenish, 5–11-lobed, 1.5–3 mm, lobes linear, lateral lobes spreading; stamens 5, alternate sepals; filaments white, 0.1–0.2 mm; anthers 0.2–0.3 × 0.5–0.7 mm; ovary ± completely inferior; styles divergent, flattened, 0.1–0.2 mm; stigmas 2-lobed. |
Seeds | dark reddish brown or blackish, 0.8–1.2 mm, pitted. |
reddish brown, 0.6–0.9 mm, pitted. |
2n | = 14. |
= 14. |
Mitella breweri |
Mitella pentandra |
|
Phenology | Flowering May–Sep. | Flowering May–Aug. |
Habitat | Moist forests, glades, stream banks, meadows, open to wooded mountain slopes | Moist woods, stream banks, avalanche tracks, wet mountain meadows, shaded banks |
Elevation | 500-3500 m (1600-11500 ft) | 1000-3700 m (3300-12100 ft) |
Distribution |
CA; ID; MT; NV; OR; WA; AB; BC
|
AK; CA; CO; ID; MT; NV; OR; SD; UT; WA; WY; AB; BC; YT
|
Source | FNA vol. 8, p. 112. | FNA vol. 8, p. 111. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Pectiantia breweri | Pectiantia pentandra |
Name authority | A. Gray: Proc. Amer. Acad. Arts 6: 533. 1865 , | Hooker: Bot. Mag. 56: plate 2933. 1829 , |
Web links |