Texas
Wildbuds

Croton heptalon

(Woolly Croton)

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Croton heptalon, Goose Island State Park, Aransas Co. 8651

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Croton heptalon, Goose Island State Park, Aransas Co. 8644

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Croton heptalon, Goose Island State Park, Aransas Co. 9027

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Croton heptalon, Goose Island State Park, Aransas Co. 9017

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Croton heptalon, Goose Island State Park, Aransas Co. 9014

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Croton heptalon, Goose Island State Park, Aransas Co. 8659

Scientific Name Croton heptalon USDA PLANTS Symbol N/A
Common Name South Texas Woolly Croton, Woolly Croton ITIS Taxonomic Serial No. 845497
Family Euphorbiaceae (Spurge) SEINet
Reference
Click Here
Description Habitat: Sandy soils along roadsides, beaches and coastal dunes.
Plant: Annual, 20 to 60 inches tall, branched upwards; stems, leaves, and buds whitish-hairy when young, becoming smooth with age.
Leaves: Alternate, ovate-lanceolate, 1-1/4 to 4 inches long and 3/8 to 2 inches wide; entire and tip is acute; lower surface is pale green, not appearing brown-dotted, and upper surface is darker green, both are stellate-hairy; petioles are 1/5 to 2 inches long.
Inflorescence: Small blossoms clustered in short racemes 0.8 to 1.6 inches long; each staminate (male) cluster with 3 to 10 flowers, each flower with 5 very short (less than 1.5 mm) petals, 9 to 12 stamens, 4 or 5 hairy sepals; each pistillate (female) cluster with 4 to 8 flowers, each flower with 3 styles, no petals, 7 or 8 hairy sepals, 1/8 to 1/4-inch long.
Fruit: Mostly round, smooth capsules about 1/4-inch diameter, 4 or 5 -seeded.
Bloom Period: May to December.
References: Flora of North America and iNaturalist.
BONAP Distribution Map


Map Color Key
Texas Status:
Native

Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County

© Tom Lebsack 2024