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FNA | Family List | FNA Vol. 20 | Asteraceae | Pityopsis

7e. Pityopsis graminifolia (Michaux) Nuttall var. tracyi (Small) Semple, Phytologia. 58: 430. 1985.

Chrysopsis tracyi Small, Fl. S.E. U.S., 1182, 1339. 1903; Heterotheca graminifolia (Michaux) Shinners var. tracyi (Small) R. W. Long; Pityopsis tracyi (Small) Small

Cauline leaves 20–80 × 3–7 mm, reduced distally. Involucres 12–14 mm. Phyllary faces moderately to densely sericeous. Ray florets 13–25; laminae 9–15 mm. Disc florets 30–37; corollas 3.6–6 mm, lobes 0.4–0.8 mm, throats and lobes sometimes sparsely to moderately long-pilose. 2n = 54.

Flowering late fall–winter. Sandy and rocky soils, margins of pine woods and shrublands; 0–30 m; Fla.

Variety tracyi is possibly adventive in northern Alabama. Spring-blooming plants of var. graminifolia can look similar because of aberrant development of only a few, and therefore larger, heads. This is the only variety with sometimes moderately long-pilose disc corolla throats and lobes throughout.


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