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Croptilon species [Asteraceae]

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Scientific Name Croptilon divaricatum USDA PLANTS Symbol CRDI17
Common Name Slender Scratch-daisy, Goldenweed ITIS Taxonomic Serial No. 501796
Family Asteraceae (Sunflower) SEINet
Reference
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Description Habitat: Sandy soils in woods, usually in openings, along roadsides, banks, and fencerows.
Plant: Erect branched annual, 6 to 12 inches tall.
Leaves: Mostly basal leaves are linear and alternate, 1 to 1-1/2 inches long; margins usually toothed and with glandular hairs, rarely smooth.
Inflorescence: Composite flower heads 3/8 to 5/8 inch across, with 5 to 11 yellow rays and 14 to 22 yellow disk florets in the center.
Bloom Period: June to December.
References: "Wildflowers of the Texas Hill Country" by Marshall Enquist and SEINet.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Croptilon rigidifolium (Croptilon divaricatum var. hirtellum) USDA PLANTS Symbol CRRI3
Common Name Stiff-leaf Scratch-daisy ITIS Taxonomic Serial No. 501798
Family Asteraceae (Sunflower) SEINet
Reference
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Description Habitat: Sandy soils in prairies, fields, pastures and roadsides.
Plant: Annual with recining (decumbent) or erect stems, 8 inches to 5 ft long; stems are stiff and can be woody, often sticky and covered with short hairs.
Leaves: Alternate, hairy stem leaves are oblanceolate, sometimes spatulate or lanceolate, sessile and stiff, pointing away from the stem; up to 1-1/4 inches long; margins are usually entire, sometimes serrate.
Inflorescence: Composite flower heads on small branches scattered along the stem forming an a panicle-like array, each flower up to 3/4 inch across, with 5 to 29 yellow rays and 10 to 40 yellow disk florets in the center; nearly cylindrical involucre with linear phyllaries in a few-series.
Bloom Period: Spring through fall.
References: Croptilon divaricatum var. hirtellum in "Manual of the Vascular Plants of Texas" by Correll and Johnston; "Plants of Deep South Texas" by Richardson and King and Flora of North America.
BONAP Distribution Map

Texas Status:
Native

© Tom Lebsack 2022