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Trixis
Family:
Asteraceae
Max Licher
FNA
Resources
David J. Keil in Flora of North America (vol. 19, 20 and 21)
Shrubs
[herbs], 20-300+ cm (often rhizomatous, stems hairy, hairs gland-tipped and glandless).
Leaves
cauline; sessile or petiolate; blades elliptic, lanceolate, linear, or linear-lanceolate, bases cuneate, margins dentate or entire, faces (at least abaxial) usually glandular and ± strigose.
Heads
quasi-radiate (see florets), borne singly or in corymbiform or paniculiform arrays.
Involucres
± cylindric, 12-15 mm (subtended by calyculi of 3-7 spreading or ascending bractlets).
Phyllaries
(reflexed in fruit) in 1-2 series, linear (± keeled), apices acute.
Receptacles
flat, smooth, hairy, epaleate.
Florets
4-25[-60], bisexual, fertile; corollas yellow (aging white), zygomorphic (2-lipped; outer lip liguliform, lobes 3, lance-deltate, inner lip smaller, lobes ± filiform, recurved); anther basal appendages entire, apical appendages oblong, acute; style branches relatively short, apices truncate-penicillate.
Cypselae
subcylindric to fusiform, often ± beaked, ribs 5, faces glandular-hairy;
pappi
of 60-80+ dull white [tawny], finely barbed bristles.
x
= 9.
Species within checklist:
Flora del Noroeste de México
Trixis angustifolia
Map not
Available
Trixis californica
Map not
Available
Trixis inula
Map not
Available
Trixis peninsularis
Map not
Available
Trixis pterocaulis
Map not
Available
Trixis radialis
Map not
Available
This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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