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Key to HazardiaView taxon page for Hazardia
(For a list of species in Hazardia, use the above link.) Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots. 1' Shrub; stems arising from woody trunk 5. Flowers 4–8; 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). 15–25 mm, 7–12 mm wide; SCoR ..... H. stenolepis 5' Flowers 9–30; leaf 15–50 mm, 10–20 mm wide; s SnJV, SCoRO, SW, n Baja California ..... H. squarrosa 6. Herbage generally sparsely hairy, generally not resinous; involucre  Group of bracts more or less held together as a unit, subtending a flower, fruit (acorn cup), or inflorescence. 8–12 mm; flowers 9–16, corolla 9–10 mm; pappus white to red-brown ..... var. grindelioides 6' Herbage glabrous to sparsely hairy, generally resinous; involucre 11–15 mm; flowers 18–30, corolla 10–11 mm; pappus tan 7. Stem glabrous to scabrous; phyllaries smooth, resinous, ± truncate  Abruptly (not gradually) narrower or smaller at base or tip, as if cut straight across or nearly so. to obtuse  Having a short-tapered, blunt tip or base, the sides convex or straight and converging at more than a right angle. , abruptly pointed, ± erect  Upright; vertically oriented. ..... var. obtusa 7' Stem sparsely hairy distally or becoming glabrous; phyllaries glandular, obtuse to acute  Having a short-tapered, sharp tip, the sides convex or straight and converging at less than a right angle. , recurved  Gradually curved downward or backward. ..... var. squarrosa 3' Heads radiate (rays sometimes inconspicuous) or disciform 8. Ray generally exceeding disk corolla; leaf margin ± entire  Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.). ..... H. orcuttii 8' Ray not exceeding disk corolla; leaf margin generally ± entire to toothed 9' Leaf densely tomentose  Covered with densely interwoven, generally matted hairs. , at least abaxially; plant 6–25 dm 10. Leaf thin, becoming glabrous adaxially; outer phyllary tips loosely woolly-tufted; disk corolla 5–8 mm ..... H. cana 10' Leaf thick, ± densely tomentose adaxially; phyllary generally densely woolly throughout; disk corolla 8–10 mm ..... H. detonsa
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