Difference between revisions of "Rudbeckia texana"
Phytologia 67: 366. 1989.
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|publication year=1989 | |publication year=1989 | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_107.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | ||
Revision as of 20:32, 16 December 2019
Perennials, to 150 cm (rhizomatous, roots fibrous). Leaves green, blades elliptic to lanceolate (not lobed), ± leathery, bases attenuate to cuneate, margins entire, serrate, or toothed, apices acute to acuminate, faces glabrous or sparsely hairy; basal 15–50 × 3–9 cm; cauline petiolate or sessile, 5–50 × 2–12 cm. Heads borne singly or (2–5) in ± corymbiform arrays. Phyllaries to 2.5 cm (margins sometimes ciliate). Receptacles ovoid to ellipsoid; paleae 6–8 mm, apices acute (appressed in young heads), abaxial tips hairy. Ray florets 10–16; laminae oblong to oblanceolate, 20–50 × 8–12 mm, abaxially hairy. Discs 20–45 × 10–20 mm. Disc florets 200–500+; corollas proximally greenish yellow, distally maroon, 3.5–5 mm; style branches ca. 2 mm, apices acute. Cypselae 5–7.5 mm; pappi coroniform, to 1.5 mm. 2n = 36.
Phenology: Flowering late spring–fall.
Habitat: Swales, prairies, ditches, bayous
Elevation: 0–50 m
Discussion
Rudbeckia texana grows in western Louisiana and eastern Texas.
Selected References
None.