Agnorhiza invenusta

(Greene) W. A. Weber

Phytologia 85: 20. 1999.

Basionym: Helianthus invenustus Greene Pittonia 1: 284. 1889
Synonyms: Balsamorhiza invenusta (Greene) Coville Wyethia invenusta (Greene) W. A. Weber
Treatment appears in FNA Volume 21. Treatment on page 105. Mentioned on page 104.

Plants 20–60(–100) cm. Stems erect, usually distally branched (densely glandular distally). Cauline leaves: blades ± deltate to ovate or ovate-lanceolate, 7–20 cm, bases broadly cuneate to truncate or shallowly cordate, margins usually entire, rarely irregularly crenate, faces piloso-hispid or hirtellous (usually gland-dotted or stipitate-glandular as well). Heads usually held beyond leaves. Involucres ± hemispheric, 20–30 mm diam. Outer phyllaries lineartriangular to lanceolate, 18–25(–30+) mm (equaling or slightly surpassing discs). Ray florets 0 or 2–3, laminae 6–10 mm. Cypselae 7–8 mm, glabrous (apices developing knoblike projections on angles); pappi 0.

Phenology: Flowering Jun–Jul.
Habitat: Openings in chaparral and in pine and oak forests
Elevation: (600–)1100–1900(–2300) m


Agnorhiza invenusta is known only from the western foothills of the Sierra Nevada.

Selected References


Lower Taxa