Juncus hemiendytus |
Juncaceae |
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blood rush, dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, juncus hemiendytus |
rush family |
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Habit | Herbs, annual, cespitose, 0.03–0.36 dm. | Herbs, perennial, occasionally annual, usually rhizomatous, orsometimes cespitose. | ||||
Culms | to 5. |
round or flat. |
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Leaves | to 1.8 cm, 1/2–1 1/3 height of plant. |
mostly basal; sheath margins fused or overlapping, often with 2 earlike extensions (auricles) at blade junction; blade flat or round, glabrous or margins hairy. |
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Inflorescences | solitary flowers. |
of headlike clusters or single flowers variously arranged; bracts subtending inflorescence 1 or more2, mostly leaflike; bracts subtending inflorescence branches 1–2, reduced; bracteoles subtending solitary flower 0–2, translucent, reduced. |
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Flowers | 2-merous; : tepals 4(–6), erect to recurved at maturity, reddish, 1.5–3 × 0.5–1.2 mm; outer and outer series nearly equal, apex rounded to acute; stamens 2(–3), filaments 0.5–1.4 mm, anthers 0.3–0.7 mm; style 0.1–0.4 mm, stigma 2(–3), 0.3–1 mm. |
usually bisexual, radially symmetric; sepals and petals similar, persistent, green to brown or purplish black; stamens usually 3 or 6; anthers persistent, linear; pistils 1; ovaries superior, locules 1 or 3, placentas 1 and basal or 3 and axile or parietal; stigmas generally longer than styles. |
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Fruits | capsules, loculicidal. |
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Capsules | reddish, 2–- or 3-locular, obovoid to ellipsoid or oblate, 1.9–3.5 × 1–2 mm. |
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Seeds | ovoid to oblate, 0.3–0.55 mm. |
3–many, often with white appendages on 1 or both ends. |
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Juncus hemiendytus |
Juncaceae |
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Distribution | Arctic and temperate regions; tropical mountains |
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Genera 9, species ca. 350 (2 genera, 1108 species in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 22, p. 232. | FNA vol. 22, p. 211. | ||||
Parent taxa | Juncaceae > Juncus > subg. Graminifolii | |||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | J. brachystylus, J. brachystylus var. uniflorus, J. triformis var. uniflorus | |||||
Name authority | F. J. Hermann: Leaflets of Western Botany 5: 118. (1948) | A. L. Jussieu | ||||
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