Lactuca saligna

Linnaeus

Sp. Pl. 2: 796. 1753.

Introduced
Treatment appears in FNA Volume 19. Treatment on page 262. Mentioned on page 260.

Annuals (perhaps persisting), 15–70(–100+) cm. Leaves on proximal 1/2–3/4+ of each stem; blades of undivided cauline leaves ± linear to filiform, margins entire or denticulate, midribs usually prickly-setose. Heads in racemiform to spiciform arrays. Involucres 6–9(–13+) mm. Phyllaries usually erect in fruit. Florets 6–12(–20+); corollas yellow (sometimes abaxially bluish), usually deliquescent. Cypselae: bodies pale brown, ± flattened, elliptic to oblanceolate, 2.5–3.5 mm, beaks ± filiform, (2–)5–6 mm, faces 5–7-nerved; pappi white, 5–6 mm. 2n = 18.


Phenology: Flowering Aug–Oct.
Habitat: Disturbed sites
Elevation: 10–1500 m

Distribution

V19-355-distribution-map.gif

Introduced; Ont., Que., Ala., Ariz., Ark., Calif., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Mo., Nebr., Nev., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., S.C., Tenn., Tex., Va., Wash., W.Va., Wis., Europe, introduced also in Mexico.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Lactuca saligna"
John L. Strother +
Linnaeus +
Ont. +, Que. +, Ala. +, Ariz. +, Ark. +, Calif. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Mo. +, Nebr. +, Nev. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, Wash. +, W.Va. +, Wis. +, Europe +  and introduced also in Mexico. +
10–1500 m +
Disturbed sites +
Flowering Aug–Oct. +
Introduced +
Undefined tribe Lactuceae +
Lactuca saligna +
species +