Difference between revisions of "Helianthus praecox subsp. hirtus"

(Heiser) Heiser

Mem. Torrey Bot. Club 22(3): 54. 1969.

Common names: Dimmit sunflower
EndemicConservation concern
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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|common_names=Dimmit sunflower
 
|common_names=Dimmit sunflower
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|special_status={{Treatment/ID/Special_status
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|code=E
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|label=Endemic
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}}{{Treatment/ID/Special_status
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|code=C
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|label=Conservation concern
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}}
 
|basionyms={{Treatment/ID/Basionym
 
|basionyms={{Treatment/ID/Basionym
 
|name=Helianthus debilis subsp. hirtus
 
|name=Helianthus debilis subsp. hirtus
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|publication title=Mem. Torrey Bot. Club
 
|publication title=Mem. Torrey Bot. Club
 
|publication year=1969
 
|publication year=1969
|special status=
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|special status=Endemic;Conservation concern
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_358.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/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

Latest revision as of 20:11, 5 November 2020

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.
Edward E. Schilling +
(Heiser) Heiser +
Helianthus debilis subsp. hirtus +
Dimmit sunflower +
50–100+ m +
Sandy soils +
Flowering early summer–fall. +
Mem. Torrey Bot. Club +
Endemic +  and Conservation concern +
Undefined (tribe Undefined) subtribe Lagasceinae +
Helianthus praecox subsp. hirtus +
Helianthus praecox +
subspecies +