Mitella breweri |
Mitella caulescens |
|
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Brewer's miterwort, Brewer's mitrewort |
creeping mitrewort, slightstem miterwort |
|
Habit | Plants not stoloniferous. | Plants usually stoloniferous. |
Flowering stems | 8–25(–40) cm. |
13–45 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 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 | 1–2, 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. |
1–2(–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 | 1–2 mm, short stipitate-glandular. |
2–8 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 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 | dark reddish brown or blackish, 0.8–1.2 mm, pitted. |
reddish purple or dark reddish brown, 0.7–1 mm, pitted. |
2n | = 14. |
= 14. |
Mitella breweri |
Mitella caulescens |
|
Phenology | Flowering May–Sep. | Flowering Apr–Jul. |
Habitat | Moist forests, glades, stream banks, meadows, open to wooded mountain slopes | Deep woods, meadows, stream banks |
Elevation | 500-3500 m (1600-11500 ft) | 0-2100 m (0-6900 ft) |
Distribution |
CA; ID; MT; NV; OR; WA; AB; BC
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CA; ID; MT; OR; WA; BC
|
Source | FNA vol. 8, p. 112. | FNA vol. 8, p. 112. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Pectiantia breweri | Mitellastra caulescens |
Name authority | A. Gray: Proc. Amer. Acad. Arts 6: 533. 1865 , | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 586. 1840 , |
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