Flora of North America species comparison

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Croton glandulosus var. septentrionalis

Croton glandulosus var. arenicola
Photo is of parent taxon

vente conmigo
Photo is of parent taxon

sand croton
Habit Plants 2–12 dm. Plants 1–2 dm.
Stems

moderately stellate-hairy, hairs appressed, radii equal.

densely 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.

petiole apical glands sessile, circular when dry, 0.2 mm diam.;

blade 0.7–3.5 × 0.5–1.5 cm, length mostly 2 times width or less, firm-thick, marginal teeth rounded, both surfaces densely stellate-hairy;

base obscurely 3-veined.

Croton glandulosus var. septentrionalis

Croton glandulosus var. arenicola
Phenology Flowering May–Nov. Flowering year-round.
Habitat Sand dunes, old fields, roadsides, waste places, cultivated land. Beaches, old fields, disturbed sites, sandy waste places.
Elevation 0–900 m. (0–3000 ft.) 0–50 m. (0–200 ft.)
Distribution
from FNA
AL; AR; DE; FL; GA; IA; IL; IN; KS; KY; LA; MD; MI; MN; MO; MS; NC; NE; NJ; OH; OK; PA; SC; TN; TX; VA; WI; WV
[BONAP county map]
from FNA
FL
[BONAP county map]
Discussion

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Variety arenicola is restricted to Miami-Dade, Monroe, and Palm Beach counties. A. M. Ferguson (1901) treated a collection of this variety as Croton betulinus Vahl, but that is a distinct, perennial species from the West Indies.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 216. FNA vol. 12, p. 215.
Parent taxa Euphorbiaceae > Croton > Croton glandulosus Euphorbiaceae > Croton > Croton glandulosus
Sibling taxa
C. glandulosus var. arenicola, C. glandulosus var. floridanus, C. glandulosus var. lindheimeri, C. glandulosus var. pubentissimus
C. glandulosus var. floridanus, C. glandulosus var. lindheimeri, C. glandulosus var. pubentissimus, C. glandulosus var. septentrionalis
Synonyms C. glandulosus var. angustifolius, C. glandulosus var. crenatifolius, C. glandulosus var. shortii, C. glandulosus var. simpsonii C. arenicola
Name authority Müller Arg.: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 15(2): 686. (1866) (Small) B. W. van Ee, P. E. Berry & Ginzbarg: Harvard Pap. Bot. 14: 49. (2009)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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