Maianthemum racemosum |
Maianthemum dilatatum |
|||||
---|---|---|---|---|---|---|
false Solomon's-seal, false spikenard, feathery false lily of the valley, feathery false Solomon's-seal, large false Solomon's-seal, plumed Solomon's seal, Solomon's-plume, treacleberry |
beadruby, false lily-of-the-valley, May-lily, Pacific May lily, snakeberry, two-leaf false Solomon's-seal, two-leaf Solomon's seal, wild lily-of-the-valley |
|||||
Habit | Plants terrestrial, to 12.5 cm. | Plants terrestrial, 20–45 cm. | ||||
Rhizomes | sympodial, cylindrical, units 30–40 cm × 8–14 mm, sometimes multiplied, roots scattered. |
sympodial, proliferatively branching, units 8–20 cm × 1–1.5 mm, roots restricted to nodes. |
||||
Stems | erect or arching, 7.5–12.5 dm × 7–9 mm. |
erect, 1.5–3.5 dm × 2–4 mm. |
||||
Leaves | 7–12, sessile and clasping, or petiolate; blade elliptic to ovate, 9–17 × 5–8 cm; base rounded or tapered; apex acute or caudate. |
solitary on sterile shoots, 2–3 on fertile shoots, petiolate; blade cordate, 6–10 × 5–8 cm; base lobed, with deep sinus; apex sharply acute; proximal leaves short-petiolate, blade triangular to cordate, petiole 4–7 cm; distal leaves petiolate, blade deeply cordate, petiole 7–10 cm. |
||||
Inflorescences | paniculate, 70–250-flowered, branches well developed, pyramidal. |
racemose, complex, 15–40-flowered. |
||||
Flowers | 3-merous; tepals inconspicuous, 0.5–1 × 0.5 mm; filaments 1 × 0.5 mm; anthers 0.5–1 mm; ovary globose, 1 mm wide; style 0.1–0.3 mm; stigma obscure; pedicel 0.5–1 × 0.5 mm. |
(1–)3(–4) per node, 2-merous; tepals conspicuous, 2–3.2 × 1.5 mm; filaments 1.5 mm; anthers 0.2–0.4 mm; ovary globose, 0.8–1 mm wide; style 0.4–0.5 mm; stigma distinctly 2-lobed; pedicel 3–5 × 0.2–0.4 mm. |
||||
Berries | green with copper spots when young, maturing to deep translucent red, globose or 3-lobed, 4–6 mm wide. |
green mottled with red when young, maturing to deep translucent red, globose, 4–6 mm diam. |
||||
Seeds | 1–4, globose, 2.5–4 mm. |
1–2, globose, 2–3 mm. |
||||
2n | = 36, 72, 144. |
= 36. |
||||
Maianthemum racemosum |
Maianthemum dilatatum |
|||||
Phenology | Flowering early spring. | |||||
Habitat | Abundant in coniferous and deciduous forests, especially in forest margins | |||||
Elevation | 0–800 m (0–2600 ft) | |||||
Distribution |
North America; n Mexico
|
AK; CA; ID; OR; WA; BC; YT; Asia (Kamtchatka peninsula in e Russia to Japan)
|
||||
Discussion | Subspecies 2 (2 in the flora). Maianthemum racemosum is sometimes cultivated. It was described as apomictic (A. L. Gorham 1953) but is much in need of cytogeographic and reproductive biological studies. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variation in the gross morphology, karyology, and ecology of the North American populations has been documented (S. Kawano et al. 1971) and compared with that of disjunct populations in Japan (S. Kawano et al. 1968b). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 26, p. 208. | FNA vol. 26, p. 208. | ||||
Parent taxa | Liliaceae > Maianthemum | Liliaceae > Maianthemum | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Convallaria racemosa, Smilacina racemosa, Unifolium racemosum | M. bifolium var. dilatatum, M. bifolium var. kamtschaticum, M. kamtschaticum, Unifolium dilatatum, Unifolium kamtschaticum | ||||
Name authority | (Linnaeus) Link: Enum. Hort. Berol. Alt. 1: 343. (1821) | (Alph. Wood) A. Nelson & J. F. Macbride: Bot. Gaz. 61: 30. (1916) | ||||
Web links |
|
|