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Key to PelargoniumView taxon page for Pelargonium
(For a list of species in Pelargonium, use the above link.) Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots. 1. Leaf peltate  With the stalk attached toward the middle, not at a margin, of a flat structure such as an indusium, scale, or leaf. , glabrous ..... [P. peltatum] 1' Leaf not peltate, glabrous or not 2. Leaf blade  Expanded portion of a leaf, petal, or other structure, generally flat but sometimes rolled, cylindric, wavy, or cupped. ± as long as wide 3' Leaf ± succulent, hairs dense; petals red to white 2' Leaf blade longer than wide or wider than long 5' Flower 15–40 mm wide; stem stout, > 3 mm diam 6. Inflorescence ± lax; flower 30–40 mm wide; 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). blade abaxially hairier, of different color than adaxially ..... P. panduriforme 6' Inflorescence dense; flower 15–18 mm wide; leaf blade abaxially, adaxially equally hairy, of same color 7. Plant prostrate  Lying flat on the ground. to sprawling; margins of lower leaves irregularly curled; inflorescence 8–20-flowered ..... [P. capitatum] 7' Plant erect  Upright; vertically oriented. ; margins of lower leaves not curled; inflorescence 3–12-flowered ..... [P. vitifolium]
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