Sisyrinchium arizonicum (Sisyrinchium arizonicum)
Description
Herbs, perennial, cespitose, dark olive to blackish when dry, to 6 dm, not glaucous; roots conspicuously fleshy-thickened. Stems branched, with 2�4 nodes, 3.5�8 mm wide, glabrous to scabrous, margins denticulate at least apically, similar in color and texture to stem body; first internode 14�27 cm, shorter than leaves; distalmost node with 1�2 branches. Leaf blades glabrous to scabrous, bases not persistent in fibrous tufts. Inflorescences borne singly; spathes green, obviously wider than supporting branch, scabrous or glabrous, keels denticulate; outer 30�55 mm, equaling or to 3.7 mm longer than inner, tapering evenly towards apex, margins basally connate 5�6 mm; inner with keel evenly curved or abruptly gibbous, hyaline margins 0.3�0.8 mm wide, apex acuminate or rounded, ending just proximal to green apex. Flowers: tepals yellow to orange, usually with brownish veins; outer tepals 11�23 mm, apex rounded to acute, aristate; filaments connate only basally, base glabrous or occasionally stipitate-glandular; ovary similar in color to foliage. Capsules black or blackish brown, obovoid to turbinate, 8�19 mm; pedicel erect to ascending. Seeds globose, lacking depression, 1.5�2.2 mm, rugulose. 2n = 34, 36, 72.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Liliopsida
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Order: Asparagales
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Family: Iridaceae
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Genus: Sisyrinchium
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