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FNA | Family List | FNA Vol. 12 | Euphorbiaceae

12e. Croton glandulosus Linnaeus var. septentrionalis Müller Arg. in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 15(2): 686. 1866.
[E W]

Croton glandulosus var. angustifolius Müller Arg.; C. glandulosus var. crenatifolius A. M. Ferguson; C. glandulosus var. shortii A. M. Ferguson; C. glandulosus var. simpsonii A. M. Ferguson

Plants 2–12 dm. Stems moderately stellate-hairy, hairs appressed, radii equal. Leaves: petiole apical glands sessile, wavy-wrinkled when dry, 0.5–0.8 mm diam.; blade 2–7 × 0.7–3 cm, length mostly more than 2 times width, membranous, marginal teeth pointed, both surfaces moderately stellate-hairy; base 3-veined.

Flowering May–Nov. Sand dunes, old fields, roadsides, waste places, cultivated land; 0–900 m; Ala., Ark., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mich., Minn., Miss., Mo., Nebr., N.J., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va., Wis.

Variety septentrionalis is by far the most widespread variety of Croton glandulosus in North America, and the only one present north of Florida in the east and north of Oklahoma and Kansas in the Midwest.


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