familyAsteraceae
genusXanthocephalum
Difference between revisions of "Xanthocephalum gymnospermoides"
Gen. Pl. 2: 249. 1873.
Common names: San Pedro matchweed
Illustrated
Basionym: Gutierrezia gymnospermoides A. Gray Smithsonian Contr. Knowl. 5(6): 79. 1853
Synonyms: Grindelia gymnospermoides (A. Gray) Ruffin
Treatment appears in FNA Volume 20. Treatment on page 437.
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|common_names=San Pedro matchweed | |common_names=San Pedro matchweed | ||
| − | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
| + | |basionyms={{Treatment/ID/Basionym | ||
|name=Gutierrezia gymnospermoides | |name=Gutierrezia gymnospermoides | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |rank=species | ||
| + | |publication_title=Smithsonian Contr. Knowl. | ||
| + | |publication_place=5(6): 79. 1853 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Grindelia gymnospermoides | |name=Grindelia gymnospermoides | ||
|authority=(A. Gray) Ruffin | |authority=(A. Gray) Ruffin | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Xanthocephalum;Xanthocephalum gymnospermoides | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Xanthocephalum;Xanthocephalum gymnospermoides | ||
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name=Xanthocephalum gymnospermoides | name=Xanthocephalum gymnospermoides | ||
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|authority=(A. Gray) Bentham & Hooker f. | |authority=(A. Gray) Bentham & Hooker f. | ||
|rank=species | |rank=species | ||
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|publication title=Gen. Pl. | |publication title=Gen. Pl. | ||
|publication year=1873 | |publication year=1873 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1000.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Xanthocephalum | |genus=Xanthocephalum | ||
Latest revision as of 19:57, 5 November 2020
Plants 30–150 cm, herbage glabrous. Stems usually 1, erect. Leaf blades 40–100 mm, bases narrowly decurrent, margins entire to spinulose-toothed, faces resinous. Heads usually in tight to loose, corymbiform arrays, rarely borne singly. Peduncles: ultimate 1–40 mm, minutely stipitate-glandular. Phyllaries minutely stipitate-glandular. Ray corollas 4–11 mm. Pappi (ray) 0, outer disc 0 or minute crowns, inner nearly 0 or minute crowns, sometimes lacerate or with awnlike scales 0.2–0.8 mm, rarely with ring of persistent, 15–20, antrorsely ciliolate bristles ca. 1.4 mm. 2n = 12.
Phenology: Flowering (Jul–)Aug–Oct.
Habitat: Meadows, stream bottoms, ditches, grasslands, areas of oak-pine or pine woodlands, usually in habitats at least intermittently wet
Elevation: 1100–2700 m
Distribution
Ariz., Tex., Mexico (Chihuahua, Durango, Jalisco, Sonora, Zacatecas).
Discussion
Selected References
None.
Lower Taxa
None.