Grindelia fraxinipratensis

Reveal & Beatley

Bull. Torrey Bot. Club 98: 334. 1972.

EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 436. Mentioned on page 428.

Perennials, 40–80(–120) cm. Stems erect, stramineous to reddish, glabrous (resinous). Cauline leaf blades oblong to oblanceolate or linear, 15–50(–70) mm, lengths 3–6+ times widths, bases weakly clasping, margins usually entire, sometimes serrate (teeth mostly toward apices, apiculate), apices acute, faces glabrous, densely gland-dotted. Heads in paniculiform arrays. Involucres campanulate to obconic, 7–10 × 5–10 mm. Phyllaries in 4–7 series, linear to lanceolate, ± appressed, apices slightly recurved to nearly straight (outermost sometimes nearly patent), attenuate, slightly resinous. Ray florets 5–13; laminae 3–5(–7) mm. Cypselae stramineous to brown, 2.5–4 mm, apices knobby, faces striate (angles ± ribbed); pappi of 2 straight, smooth, setiform awns 3–4 mm, shorter than to nearly equaling disc corollas. 2n = 24.


Phenology: Flowering Jun–Aug(–Oct).
Habitat: Meadows, woodland borders
Elevation: 600–700 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.