Mitella pentandra |
Mitella caulescens |
|
---|---|---|
five-stamen mitrewort, fivestamen miterwort |
creeping mitrewort, slightstem miterwort |
|
Habit | Plants sometimes stoloniferous. | Plants usually stoloniferous. |
Flowering stems | 8–48(–60) cm. |
13–45 cm. |
Leaves | 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. |
petiole 1.5–14 cm, short stipitate-glandular and, usually, long stipitate-glandular, longer hairs spreading to retrorse, white; blade broadly cordate to broadly ovate, ± as long as wide, 1.2–6.5(–8.5) × 1.4–7(–8.2) cm, margins 3-, 5-, or 7-lobed, crenate-dentate, irregularly ciliate, apex of terminal lobe acute to obtuse, surfaces short stipitate-glandular and sparsely long stipitate-glandular; cauline leaves 1–3, proximal or mid cauline, alternate, sessile or petiolate, blade 0.3–4.3(–6) × 0.4–4.4(–7) cm. |
Inflorescences | 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. |
1–2(–4), remotely 5–25-flowered, 1(–2) flowers per node, (anthesis basipetalous), not secund, 13–45 cm, short stipitate-glandular and sparsely long stipitate-glandular proximally, short stipitate-glandular distally. |
Pedicels | 1.5–5(–8) mm, short stipitate-glandular. |
2–8 mm, short stipitate-glandular. |
Flowers | 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. |
hypanthium broadly campanulate, 1.5–2 × 3–5.5 mm; sepals spreading or recurved, greenish, deltate-ovate, 0.9–1.5 × 1.4–2 mm; petals whitish green or greenish, sometimes purple tinged proximally, 5–9-lobed, 3–4 mm, lobes linear, lateral lobes spreading; stamens 5, opposite sepals; filaments usually purple proximally and white distally, sometimes entirely white, 0.6–0.9 mm; anthers 0.2–0.4 × 0.2–0.4 mm; ovary 1/2 inferior; styles erect or spreading, cylindric, 0.8–1.1 mm; stigmas unlobed. |
Seeds | reddish brown, 0.6–0.9 mm, pitted. |
reddish purple or dark reddish brown, 0.7–1 mm, pitted. |
2n | = 14. |
= 14. |
Mitella pentandra |
Mitella caulescens |
|
Phenology | Flowering May–Aug. | Flowering Apr–Jul. |
Habitat | Moist woods, stream banks, avalanche tracks, wet mountain meadows, shaded banks | Deep woods, meadows, stream banks |
Elevation | 1000-3700 m (3300-12100 ft) | 0-2100 m (0-6900 ft) |
Distribution |
AK; CA; CO; ID; MT; NV; OR; SD; UT; WA; WY; AB; BC; YT
|
CA; ID; MT; OR; WA; BC
|
Source | FNA vol. 8, p. 111. | FNA vol. 8, p. 112. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Pectiantia pentandra | Mitellastra caulescens |
Name authority | Hooker: Bot. Mag. 56: plate 2933. 1829 , | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 586. 1840 , |
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