Juncus interior |
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inland rush, interior juncus, interior rush |
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Habit | Herbs, perennial, tufted, 2–6 dm. |
Rhizomes | densely branching. |
Culms | 1–10. |
Cataphylls | 1–3. |
Leaves | basal, 1–2(–3); auricles whitish or purplish tinged, 0.2–0.4(–0.6) mm, scarious; blade flat, 5–15 cm × 0.5–1.1 mm, margins entire. |
Inflorescences | usually somewhat compact, 1.5–7 cm; primary bract usually shorter than inflorescence. |
Flowers | bracteoles 2; tepals greenish, lanceolate, 3.3–4.4 mm, apex acuminate; stamens 6, filaments 0.5–0.9 mm, anthers 0.4–0.6 mm; style 0.1–0.2 mm. |
Capsules | light tan or darker, 1-locular to pseudo-3-locular, ellipsoid to nearly globose, (3.3–)3.8–4.7 mm, nearly equal to or longer than tepals. |
Seeds | tan, ellipsoid to lunate, 0.436–0.73 mm, not tailed. |
2n | = 80. |
Juncus interior |
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Phenology | Flowering and fruiting late spring–early summer. |
Habitat | Dry, often upland sites in prairies, exposed disturbed sites, and ditches in sandy or clayey soils |
Distribution |
AR; AZ; CO; IA; IL; IN; KS; KY; LA; MN; MO; MT; ND; NE; NM; OH; OK; SD; TN; UT; WI; WY; AB; MB; ON; QC; SK; Texas
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Source | FNA vol. 22. |
Parent taxa | Juncaceae > Juncus > subg. Poiophylli |
Sibling taxa | |
Synonyms | J. arizonicus, J. interior var. arizonicus, J. interior var. neomexicanus, J. monostichus, J. neomexicanus |
Name authority | Wiegand: Bulletin of the Torrey Botanical Club 27: 516. (1900) |
Web links |
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