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Adenophyllum porophylloides (A. Gray) J.L. Strother  

No occurrences found

Family: Asteraceae
San Felipe dogweed
[Dyssodia porophylloides A. Gray]
Adenophyllum porophylloides image
Max Licher
  • FNA
  • Field Guide
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John L. Strother in Flora of North America (vol. 21)
Perennials or subshrubs, 20-50+ cm. Leaves pinnately lobed, 15-40 mm, lobes 3-5, linear to cuneate or oblanceolate (oil-glands at base of each lobe and subterminal in tips). Peduncles 20-80 mm. Calyculi of 12-16 subulate bractlets 3-8 mm (bearing glands). Involucres obconic, 10-15 mm. Phyllaries 12-20, lanceolate, separating in fruit. Ray florets 10-14; corollas yellow, becoming red-orange; tubes ca. 2 mm, laminae 6 × 2 mm. Disc florets 25-40; corollas yellow-orange, 7-8 mm. Cypselae 5 mm; pappi of 8-12 scales 7-8 mm, each comprising 7-11 basally connate bristles. 2n = 26. Flowering spring and fall. Alluvial fans and rocky slopes in deserts; 0-1200 m; Ariz., Calif., Nev.; Mexico (Baja California, Sonora).
FNA 2006, Wiggins 1964, Kearney and Peebles 1969
Duration: Perennial Nativity: Native Lifeform: Subshrub General: Perennial 20-50 cm tall from a thick woody base, herbage has a strong disagreeable odor; stems erect or ascending, glabrous, angled. Leaves: Opposite below, alternate above, thick, pinnately lobed, 15-40 mm, lobes 3-5, linear to cuneate or oblanceolate with oil glands at the base of each lobe and subterminal in tips). Flowers: Corymbose on peduncles 20-80 mm long, heads 1.5-2 cm long at anthesis; turbinate, obconic involucres, 10-15 mm; phyllaries 12-20, lanceolate, separating in fruit, acute to short-mucronate at apices; 10-14 ray florets, corollas yellow becoming red-orange, tubes about 2 mm; 25-40 disc florets, corollas yellow-orange, 7-8 mm. Fruits: Brownish cypselae 5 mm, finely striate, srigillose, with pappus of 8-12 scales 7-8 mm, each comprising 7-11 basally connate bristles. Ecology: Found on rock slopes, outwash fans, arroyos, and mesas below 4,000 ft (1219 m); flowers March-October. Distribution: AZ, CA, NV; south to n MEX (Sonora, Baja California) Notes: The smell of this species is clearly one of the more recognizable features, along with the oil glands at the base of the leaves. Ethnobotany: Unknown Etymology: Adenophyllum is from the Greek for gland-leaf, while porophylloides means having leaves like those of Porophyllum. Synonyms: Dyssodia porophylloides Editor: SBuckley, 2010
Adenophyllum porophylloides image
Liz Makings
Adenophyllum porophylloides image
Max Licher
Adenophyllum porophylloides image
Max Licher
Adenophyllum porophylloides image
Anthony Mendoza
Adenophyllum porophylloides image
Max Licher
Adenophyllum porophylloides image
Max Licher
Adenophyllum porophylloides image
Max Licher
Adenophyllum porophylloides image
Eugene, (Gene) Sturla
Adenophyllum porophylloides image
L.R. Landrum
Adenophyllum porophylloides image
Liz Makings
Adenophyllum porophylloides image
Zachery Berry
Adenophyllum porophylloides image
Eugene, (Gene) Sturla
Adenophyllum porophylloides image
L.R. Landrum
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