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Croton species [Euphorbiaceae]

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Scientific Name Croton lindheimeri (Croton capitatus var. lindheimeri) USDA PLANTS Symbol
CRCAL2
Common Name Hogwort, Lindheimer's Hogwort, Woolly Goatweed ITIS Taxonomic Serial No.
511813
Family Euphorbiaceae (Spurge) Flora of North America Ref.
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Description Habitat: Dry prairies, overgrazed pastures, rocky hills, open woodlands, and roadsides; usually sandy or limestone soils.
Plant: Annual 8 to 40 inches tall, branched; yellow-brown stem hairs on newer growth, becoming smooth.
Leaves: Pale-green ovate-lanceolate blades 1/1/4 to 2-3/4 inches long; margins entire, sharply pointed tips; petioles longer (up to 2-3/4 inches) below, becoming much shorter (about 1/2-inch long) near branch tips.
Inflorescence: Small blossoms in short racemes 0.6 to 1.2 inches long; staminate (male) flowers with 7 to 12 stamens, 5 hairy sepals and petals; pistillate (female) flowers with 7 to 8 sepals, 3 styles and no petals.
Fruit: Mostly round capsules about 1/4-inch diameter, 3-seeded.
Bloom Period: May to December.
References: Flora of North America, Shinner and Mahler's Illustrated Flora of North Central Texas, and Kansas Wildflowers.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Croton monanthogynus USDA PLANTS Symbol
CRMO6
Common Name One-seed Croton, Prairie Tea ITIS Taxonomic Serial No.
28283
Family Euphorbiaceae (Spurge) SEINet
Reference
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Description Habitat: Dry imestone/caliche soils; prairies, disturbed areas.
Plant: Erect, much-branched annual up to 20 inches tall; stems somewhat hairy.
Leaves: Alternate fuzzy leaves; lower leaves ovate-oblong to almost round; upper leaves narrowly elliptic; up to 1-3/8 inches long and 1 inch wide.
Inflorescence: Inconspicuous greenish-white flowers clustered in congested terminal racemes about 3/8 inch long; separate staminate (male) and pistillate (female) flowers on the same plant; staminate flowers have no petals and 5 sepals; pistillate flowers have 4 petals and 5 sepals.
Fruit: Oval-shaped capsules less than 2/10-inch diameter, smooth, 1-seeded.
Bloom Period: May to November.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and Flora of North America.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Croton pottsii var. pottsii USDA PLANTS Symbol CRPOP
Common Name Leatherweed ITIS Taxonomic Serial No. 527546
Family Euphorbiaceae (Spurge) SEINet
Reference
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Description Habitat: Desert grasslands and scrub in Brewster County (Big Bend).
Plant: Perennial subshrub 4 to 20 inches tall with several main, branched stems from a woody base, stems and leaves covered with small, shaggy hairs.
Leaves: On petioles 0.2 to 0.9 inches long; upper leaf blades ovate-elliptic, lower blades rounder; blades 0.6 to 1.8 inches long and 0.2 to 0.7 inches wide and margins entire, with rounded to acute tips; both surfaces pale to grey-green and softly stellate-hairy.
Inflorescence: Small blossoms in short racemes 0.2 to 1 inch long, at the tops of plants and emerging from leaf axils; staminate (male) flowers with 4 or 5 very short sepals, 4 or 5 very short oblong-lanceolate petals and 10 to 15 stamens; pistillate (female) flowers with 5 sepals less than 1/8 inch long and no petals, roundish ovaries with three lobes and three stigmas from the tops.
Bloom Period: March to October.
Note: The yellow herbage of a portion of the plant in the images below is puzzling. It may be from a type of fungus, but my research has not yet determined if it is or what type. Note that in addition to the color the affected leaves seemed to be curled and deformed a bit. References: Flora of North America, SEINet, and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
BONAP Distribution Map

Texas Status:
Native

© Tom Lebsack 2021