Trixis californica var. californica

Illustrated
Treatment appears in FNA Volume 19. Treatment on page 75.

Plants 20–200 cm. Leaves usually ascending, almost parallel with stems; petioles winged, 1.5–5 mm; blades linear-lanceolate to lanceolate, 2–11 cm, bases acute, margins entire or denticulate (often revolute), apices acute, induments: abaxial faces glandular-puberulent and sparsely strigose (sometimes only on veins), adaxial faces glandular and strigose to pilose; stomates on both faces. Heads usually in corymbiform or paniculiform arrays, rarely borne singly. Peduncles 5–45 mm, often ± inflated distally. Calyculi of 5–7 linear to lanceolate or ovate bractlets 5–16 mm. Phyllaries usually 8, linear, 8–14 mm, apices acute. Florets 11–25; corolla tubes 6–9 mm, outer lips 5–8 mm, inner 4–5.5 mm. Cypselae 6–10.5 mm, papilla-like double hairs producing mucilage when wetted; pappi 7.5–12 mm. 2n = 54.


Phenology: Flowering Jan–Nov.
Habitat: Dry, rocky slopes, washes, desert flats, thorn scrub
Elevation: 200–1600(–2200) m

Distribution

V19-13-distribution-map.gif

Ariz., Calif., N.Mex., Tex., Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Tamaulipas, Zacatecas).

Discussion

Selected References

None.

Lower Taxa

None.
David J. Keil +
Kellogg +
Ariz. +, Calif. +, N.Mex. +, Tex. +, Mexico (Baja California +, Baja California Sur +, Chihuahua +, Coahuila +, Durango +, Nuevo León +, San Luis Potosí +, Sinaloa +, Sonora +, Tamaulipas +  and Zacatecas). +
200–1600(–2200) m +
Dry, rocky slopes, washes, desert flats, thorn scrub +
Flowering Jan–Nov. +
Proc. Calif. Acad. Sci. +
Illustrated +
Compositae +
Trixis californica var. californica +
Trixis californica +
variety +