Maianthemum canadense

Desfontaines

Ann. Mus. Natl. Hist. Nat. 9: 54. 1807.

Common names: False lily-of-the-valley two-leaved Solomon’s-seal Canadian may-lily maïanthème du Canada
IllustratedEndemic
Synonyms: Maianthemum canadense var. interius Fernald Smilacina canadensis (Desfontaines) Greene Unifolium canadense
Treatment appears in FNA Volume 26. Treatment on page 208. Mentioned on page 206, 207.

Plants terrestrial, 10–25 cm. Rhizomes sympodial, proliferatively branching, units 2–30 cm × 1–1.5 mm, roots restricted to nodes. Stems erect, 1–1.8 dm × 1–2.5 mm. Leaves solitary on sterile shoots, 2–3 on fertile shoots; blade 4.5–7(–9) × 3–4.5(–5.5) cm, apex acute or short-caudate; proximal leaves sessile, blade ovate, base with narrow sinus; distal leaves petiolate, blade cordate, petiole 1–7 mm. Inflorescences racemose, complex, 12–25-flowered. Flowers (1–)2(–3) per node, 2-merous; tepals conspicuous, 1.5–2 × 0.8–1 mm; filaments 1–1.5 mm; anthers 0.2–0.4 mm; ovary globose, 0.8–1 mm wide; style 0.5–0.8 mm; stigma distinctly 2-lobed; pedicel 3–7 × 0.2–0.5 mm. Berries green mottled red when young, maturing to deep translucent red, globose, 4–6 mm diam. Seeds 1–2, globose, 3 mm. 2n = 36, 54, 72.


Phenology: Flowering early spring.
Habitat: Deciduous and coniferous forests, persisting in forest remnants and parks
Elevation: 0–1800 m

Distribution

V26 356-distribution-map.jpg

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Conn., Del., D.C., Ga., Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Minn., Mont., Nebr., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Pa., R.I., S.C., S.Dak., Tenn., Vt., Va., W.Va., Wis., Wyo.

Discussion

Pubescent specimens of Maianthemum canadense in the western half of the range with consistently larger leaves have been treated as var. interius.

Selected References

None.

Lower Taxa

None.
... more about "Maianthemum canadense"
James V. LaFrankie +
Desfontaines +
False lily-of-the-valley +, two-leaved Solomon’s-seal +, Canadian may-lily +  and maïanthème du Canada +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Vt. +, Va. +, W.Va. +, Wis. +  and Wyo. +
0–1800 m +
Deciduous and coniferous forests, persisting in forest remnants and parks +
Flowering early spring. +
Ann. Mus. Natl. Hist. Nat. +
W1 +, Illustrated +  and Endemic +
Maianthemum canadense var. interius +, Smilacina canadensis +  and Unifolium canadense +
Maianthemum canadense +
Maianthemum +
species +