Difference between revisions of "Helianthus praecox subsp. hirtus"
Mem. Torrey Bot. Club 22(3): 54. 1969.
Common names: Dimmit sunflower
Basionym: Helianthus debilis subsp. hirtus Heiser Madroño 13: 162, fig. 7. 1956
Treatment appears in FNA Volume 21. Treatment on page 152.
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|publication year=1969 | |publication year=1969 | ||
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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_358.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | ||
Revision as of 20:36, 16 December 2019
Stems erect, branches ascending, densely hirsute or hispid-hirsute. Leaves (larger) 8–9 cm. Peduncles (25–)30–40 cm. Phyllary apices short-attenuate. Paleae: middle teeth white-villous (“bearded”). Rays 14–16. 2n = 34.
Phenology: Flowering early summer–fall.
Habitat: Sandy soils
Elevation: 50–100+ m
Discussion
Of conservation concern.
Subspecies hirtus is known from only a single population, near Carrizo Springs; it is genetically distinct from the two other subspecies (L. H. Rieseberg and M. F. Doyle 1989)
Selected References
None.
Lower Taxa
None.