Difference between revisions of "Iva hayesiana"
Proc. Amer. Acad. Arts 11: 78. 1876.
Treatment appears in FNA Volume 21. Treatment on page 26.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | ||
Latest revision as of 21:12, 5 November 2020
Perennials or subshrubs, 10–100 cm. Stems sprawling to erect (usually woody at bases). Leaves: petioles 0–3(–10) mm; blades lance-elliptic to oblanceolate, 2–5(–10) cm × 5–10(–18) mm, margins usually entire, rarely toothed, faces sparsely strigose to scabrellous, gland-dotted. Heads in ± racemiform arrays. Peduncles 2–3+ mm. Involucres ± hemispheric, 2.5–3.5 mm. Phyllaries: outer 5 distinct, ± herbaceous. Paleae linear to cuneiform, 1.5–2.5 mm. Pistillate florets 5; corollas 0.5–1 mm. Functionally staminate florets 5–12(–20); corollas 1.5–2.5 mm. Cypselae 2–2.5 mm.
Phenology: Flowering year round.
Habitat: Alkaline flats, depressions
Elevation: 50–500 m
Distribution
Calif., Mexico (Baja California).
Discussion
Selected References
None.
Lower Taxa
None.