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Key to LeptosyneView taxon page for Leptosyne
(For a list of species in Leptosyne, use the above link.) Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots. 1. Perennial herb or shrub; stem stout, 3–20 dm; ray elliptic In the shape of a flattened circle or ellipse; wider than linear to oblong Longer than wide, with nearly parallel sides; wider than linear. , much longer than wide; heads, including rays, generally 4–10 cm diam 2. Trunk erect Upright; vertically oriented. , fleshy, to ± 2 m; stem solid; heads (1)8–20+ per cluster; peduncle Stalk of an individual flower borne singly, not in an inflorescence, or of an entire inflorescence, or the corresponding structure in fruit; the stalk subtending an involucre (e.g., in Asteraceae, Polygonaceae). 6–20 cm ..... L. gigantea 1' Annual; stem slender, generally 0.5–4 dm; ray oblong to ovate Egg-shaped (i.e., widest below the middle) in two dimensions (i.e., in one plane), as a leaf. or obovate; heads 1–7 cm diam 3. Disk fruit ciliate Having generally straight, conspicuous hairs along margins or edges. , pappus scales 2, 1–5 mm; ray fruit glabrous, pappus scales 0 4' Outer phyllaries linear Elongate, with nearly parallel sides; narrower than elliptic or oblong. to linear-oblong; disk pappus scales <= 3 mm 5. Disk pappus scales 1.7–2.8 mm; palea 1. In Asteraceae, a scale-like bract that subtends an individual flower on the receptacle (equal to 'chaff scale' in TJM), absent in some genera, restricted to a ring separating ray and disk flowers in most tarweed species. 2. In Poaceae, the distal, generally smaller of two sheathing bracts subtending a flower, generally two-veined and -keeled and ensheathed by the lemma; with the lemma and flower, comprising the floret. and disk fruit fused at base, falling together; rays spreading Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal. horizontally in fully opened heads ..... L. bigelovii 5' Disk pappus scales 0.9–1.3 mm; palea free from disk fruit, falling separately; rays reflexed Abruptly bent or curved downward or backward. in fully opened heads ..... L. hamiltonii 3' Disk and ray fruits similar, never ciliate; pappus 0 or of 1–2 scales, < 1 mm 6. Leaves ± flat, 1–2-pinnately divided into narrowly oblanceolate lobes 1. A major expansion or bulge, such as on the margin of a leaf, sepal, or petal, or on the surface of an ovary. 2. The free tips of otherwise fused structures, such as sepals or petals; larger than teeth. 1–3 mm wide; outer phyllary bases with gland-tipped teeth ..... L. stillmanii 6' Leaves or leaf Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). lobes linear or thread-like, 0.3–1.3 mm wide; phyllary teeth 0 7. Fruit rusty-tan to light brown or ± red, generally blotched with red or black spots near margin at least when young, puberulent Minutely hairy. , wings irregularly thickened, corky ..... L. californica
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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, https://ucjeps.berkeley.edu/eflora/ [accessed on ]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .
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