familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Helianthinae
genusHelianthus
speciesHelianthus praecox
subspeciesHelianthus praecox subsp. praecox

Helianthus praecox subsp. praecox

Edward E. Schilling
Common names: Texas sunflower
Synonyms: Helianthus debilis subsp. praecox
Treatment appears in FNA Volume 21. Treatment on page 152. Mentioned on page 151.
Revision as of 21:36, 16 December 2019 by FNA>Volume Importer

Stems procumbent to erect, branches horizontal, moderately hispid or hirsute. Leaves (at least larger) 3–8 cm. Peduncles 15–30 cm. Phyllary apices short-acuminate. Paleae: middle teeth puberulent. Rays 14–15. 2n = 34.


Phenology: Flowering early summer–fall.
Habitat: Sandy soils
Elevation: 0–50 m

Distribution

V21-356-distribution-map.gif

Tex.

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Helianthus praecox subsp. praecox"
RDF feed
Author
Edward E. Schilling +
Authority
Engelmann & A. Gray +
Common name
Texas sunflower +
Distribution
Tex. +
Elevation
0–50 m +
Habitat
Sandy soils +
Illustration copyright
Flora of North America Association +
Illustrator
Marjorie C. Leggitt +
Number of lower taxa
0 +
Phenology
Flowering early summer–fall. +
Publication title
Boston J. Nat. Hist. +
Publication year
1847 +
Reference
None +
Source xml
https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V19-20-21/V21 356.xml +
Synonyms
Helianthus debilis subsp. praecox +
Taxon family
Asteraceae +
Taxon name
Helianthus praecox subsp. praecox +
Taxon parent
Helianthus praecox +
Taxon rank
subspecies +
Volume
Volume 21 +