Lycopodium clavatum

Linnaeus

Sp. Pl. 2: 1101. 1753.

Common names: Common club-moss lycopode à massue
Synonyms: Lycopodium clavatum var. subremotum Victorin
Treatment appears in FNA Volume 2.

Horizontal stems on substrate surface. Upright shoots clustered, 0.6–1.2 cm diam., dominant main shoot with 3–6 branches mostly in lower 1/2. Lateral branchlets few and like upright shoots; annual bud constrictions abrupt, branchlets mostly spreading. Leaves spreading, often somewhat ascending in distal 1/3 of branches, medium green, linear, 4–6 × 0.4–0.8 mm; margins entire; apex with narrow hair tip 2.5–4 mm. Peduncles 3.5–12.5 cm, with remote pseudowhorls of appressed leaves, loosely branched into 2–5 alternate stalks, 0.5–0.8 cm. Strobili 2–5 on alternate stalks (if double, usually with stalks 5–8 mm), 15–25 × 3–6 mm. Sporophylls 1.5–2.5 mm, apex abruptly reduced to hair tip. 2n = 68.


Habitat: Fields and woods
Elevation: 100–1800 m

Distribution

V2 661-distribution-map.gif

St. Pierre and Miquelon, B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Sask., Alaska, Calif., Conn., Ga., Idaho, Ill., Ind., Ky., Maine, Md., Mass., Mich., Minn., Mont., N.H., N.J., N.Y., N.C., Ohio, Oreg., Pa., R.I., Tenn., Vt., Va., Wash., W.Va., Wis., Mexico, West Indies, Central America, South America, Europe, Asia, Africa, Pacific Islands.

Discussion

Plants found in eastern North America have been called Lycopodium clavatum var. clavatum; those in the western part of the range, which have been called L. clavatum var. integrifolium Goldie, are distinguished by early shedding of the characteristic hairs on the leaf tips.

Lycopodium dendroideum group

Selected References

None.

Lower Taxa

None.
... more about "Lycopodium clavatum"
Warren H. Wagner Jr. +  and Joseph M. Beitel +
Linnaeus +
Common club-moss +  and lycopode à massue +
St. Pierre and Miquelon +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Alaska +, Calif. +, Conn. +, Ga. +, Idaho +, Ill. +, Ind. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Oreg. +, Pa. +, R.I. +, Tenn. +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Mexico +, West Indies +, Central America +, South America +, Europe +, Asia +, Africa +  and Pacific Islands. +
100–1800 m +
Fields and woods +
Lycopodium clavatum var. subremotum +
Lycopodium clavatum +
Lycopodium +
species +