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, papillalike 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), Mexico (Baja California Sur), Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Sinaloa), Mexico (Sonora), Mexico (Tamaulipas), Mexico (Zacatecas)

Discussion

Selected References

None.

Lower Taxa

None.
strigose +  and glandular-puberulent +
strigose +  and pilose +
acute;acute;acute +
scarious +
acute +  and oblong +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
David J. Keil +
Kellogg +
compound +  and simple +
linear-lanceolate;lanceolate +
2 cm20 mm <br />0.02 m <br /> (11 cm110 mm <br />0.11 m <br />) +
ribbed;smooth +
linear;lanceolate or ovate +
0.5 cm5 mm <br />0.005 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
barbellulate +  and smooth +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
papilla-like +
Ariz. +, Calif. +, N.Mex. +, Tex. +, Mexico (Baja California) +, Mexico (Baja California Sur) +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Durango) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +, Mexico (Sinaloa) +, Mexico (Sonora) +, Mexico (Tamaulipas) +  and Mexico (Zacatecas) +
200–1600(–2200) m +
glandular-hairy +  and strigose +
pistillate +, staminate +  and neuter +
fertile +  and bisexual +
winged +  and beaked +
dispersed +
Dry, rocky slopes, washes, desert flats, thorn scrub +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
petiolate +  and sessile +
entire +  and dentate +
denticulate +  and entire +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2-carpellate +
persistent +
0.75 cm7.5 mm <br />0.0075 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Jan–Nov. +
connate +  and distinct +
unequal +  and subequal +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Proc. Calif. Acad. Sci. +
flat;convex +
barbellulate +  and smooth +
plumose +, subulate +  and setiform +
exalbuminous +
Illustrated +
prostrate +  and ascending +
appendaged +  and truncate +
hairy +  and glabrous +
papillate +
Compositae +
Trixis californica var. californica +
Trixis californica +
variety +
perennial +  and annual +