Adenophyllum porophylloides

(A. Gray) Strother

Sida11: 377. 1986

Basionyms: Dyssodia porophylloides
Found in FNA Volume 21. Treatment on page 239. Mentioned on page 238.
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.

Phenology: Flowering spring and fall.
Habitat: Alluvial fans and rocky slopes in deserts
Elevation: 0–1200 m

Distribution

Ariz., Calif., Nev., Mexico (Baja California, Sonora).

Discussion

References

None.

AuthorJohn L. Strother +
BasionymDyssodia porophylloides +
Elevation0–1200 m +
HabitatAlluvial fans and rocky slopes in deserts +
IllustratorBarbara Alongi +
PhenologyFlowering spring and fall. +
ReferenceNone +
Taxon nameAdenophyllum porophylloides +
Taxon parentAdenophyllum +
Taxon rankspecies +
VolumeVolume 21 +