Jepson eFlora
Key to families | Table of families and genera

Key to Trisetum

View taxon page for Trisetum

1. Lemma awn 0(2) mm ..... T. wolfii

1' Lemma awn 4–12 mm

2. Inflorescence generally panicle-like, ± dense to open; awns generally > 7 mm; ovary hairy at tip

3. Florets generally to base of panicle branches; lower inflorescence branches ascending to erect; lower glume 3–5 mm ..... T. canescens

3' Florets only at tips of panicle branches; lower inflorescence branches generally spreading; lower glume < 3 mm ..... T. cernuum

2' Inflorescence generally spike-like, dense; awns generally <= 7 mm; ovary glabrous at tip

4. Panicle 8–23 cm, interrupted; leaves densely soft-hairy; upper glumes 5.5–7 mm ..... T. projectum

4' Panicle 2.5–7(10) mm, not interrupted; leaves glabrous or densely soft-hairy; upper glumes 4–5 mm ..... T. spicatum

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Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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