Rayjacksonia phyllocephala

(de Candolle) R. L. Hartman & M. L. Lane

Amer. J. Bot.83: 369. 1996

Common names: Gulf Coast camphor-daisy
Synonyms: Haplopappus phyllocephalus megacephalus Machaeranthera phyllocephala Machaeranthera phyllocephala megacephala Sideranthus megacephalus
Basionyms: Haplopappus phyllocephalus
Found in FNA Volume 20. Treatment on page 439. Mentioned on page 438.
FNA20 P46 Grindelia arizonica.jpeg
Annuals or perennials, 10–70(–100) cm, herbaceous to suffrutescent. Leaf blades oblong to oblanceolate, mid-cauline (2.5–)4–13 mm wide. Heads essentially sessile, often surpassed by distal leaves that continue to very base of heads. Involucres (6–)10–15 × 12–30 mm. Phyllaries in 3–4 series, loose, subequal, apices erect to spreading, 1.3–1.7 mm wide, herbaceous. Ray florets 17–38; corollas 8.5–19 mm. Disc florets: corolla tubes longer than limbs. 2n = 12.

Phenology: Flowering (Jul–)Sep–Dec (sporadically Feb–Jun).
Habitat: Sandy sites, along waterways, canal banks, dunes, beaches, salt flats
Elevation: 0–10 m
AuthorGuy L. Nesom +
BasionymHaplopappus phyllocephalus +
Common nameGulf Coast camphor-daisy +
Elevation0–10 m +
HabitatSandy sites, along waterways, canal banks, dunes, beaches, salt flats +
IllustratorBarbara Alongi +
PhenologyFlowering (Jul–)Sep–Dec (sporadically Feb–Jun). +
Referencejackson1981a +
SynonymHaplopappus phyllocephalus megacephalus +, Machaeranthera phyllocephala +, Machaeranthera phyllocephala megacephala + and Sideranthus megacephalus +
Taxon nameRayjacksonia phyllocephala +
Taxon parentRayjacksonia +
Taxon rankspecies +
VolumeVolume 20 +