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

Helianthus debilis subsp. silvestris

Heiser

Madroño 13: 158, fig. 6. 1956.

Edward E. Schilling
Endemic
Treatment appears in FNA Volume 21. Treatment on page 151. Mentioned on page 150.

Stems erect, glabrate. Leaf blades (6–)8–14 cm, margins serrate, abaxial faces densely gland-dotted. Peduncles (relatively slender) 20–40 cm. Ray laminae 15–23 mm. Discs 14–15(–16) mm diam. 2n = 34.


Phenology: Flowering late spring–fall.
Habitat: Open areas, sandy soils with pine and oak
Elevation: 10–100+ m

Distribution

V21-352-distribution-map.gif

Tex.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Helianthus debilis subsp. silvestris"
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Author
Edward E. Schilling +
Authority
Heiser +
Distribution
Tex. +
Elevation
10–100+ m +
Habitat
Open areas, sandy soils with pine and oak +
Illustration copyright
Flora of North America Association +
Illustrator
Marjorie C. Leggitt +
Number of lower taxa
0 +
Phenology
Flowering late spring–fall. +
Publication title
Madroño +
Publication year
1956 +
Reference
None +
Source xml
https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse grained fna xml/V19-20-21/V21 352.xml +
Special status
Endemic +
Synonyms
Undefined (tribe Undefined) subtribe Lagasceinae +
Taxon family
Asteraceae +
Taxon name
Helianthus debilis subsp. silvestris +
Taxon parent
Helianthus debilis +
Taxon rank
subspecies +
Volume
Volume 21 +