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
EndemicConservation concern
Synonyms: Helianthus debilis subsp. praecox
Treatment appears in FNA Volume 21. Treatment on page 152. Mentioned on page 151.

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://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse grained fna xml/V19-20-21/V21 356.xml +
Special status
Endemic +  and Conservation concern +
Synonyms
Helianthus debilis subsp. praecox +
Taxon family
Asteraceae +
Taxon name
Helianthus praecox subsp. praecox +
Taxon parent
Helianthus praecox +
Taxon rank
subspecies +
Volume
Volume 21 +