Bulbostylis juncoides

(Vahl) Kükenthal ex Osten

Anales Mus. Hist. Nat. Montevideo, ser. 2, 3: 187. 1931

Synonyms: Bulbostylis arenaria (Nees) Lindman Bulbostylis argentina Palla Bulbostylis langsdorffiana (Kunth) C. B. Clarke Fimbristylis capillaris var. pilosa Britton Fimbristylis juncoides (Vahl) Alain Fimbristylis savannarum Alain Oncostylis arenaria Nees Oncostylis tenuifolia var. hirta Liebmann Oncostylis tenuifolia var. nana Liebmann Scirpus lorentzii unknown
Basionyms: Schoenus juncoides Vahl
Treatment appears in FNA Volume 23. Treatment on page 135. Mentioned on page 132, 136.
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Herbs, perennial, densely cespitose. Culms 10–30(–40) cm, bases hard, swollen. Leaves ¼–1/2 length of scapes; sheaths brown to stramineous, abaxially glabrous or hirtellous; blades spreading to erect, filiform, wiry, less than 1 mm wide, involute, margins and adaxial surface glabrous to hispidulous or scabrid. Inflorescences terminal, mostly in compound, compact or diffuse, involucrate anthelae; scapes ascending to erect, wiry, 1 mm thick, coarsely ribbed, ribs glabrous or hispidulous to scabrid; proximal bladed involucral bract exceeding or exceeded by inflorescence. Spikelets red-brown to chestnut-brown, lanceoloid to cylindric, 4–6 mm, mostly longer than broad; fertile scales ovate, curvate-keeled, 2–2.5 mm, apex acute, glabrous or papillose-puberulent, midrib excurrent as mucro or mucronula. Flowers: stamens 3; anthers linear, 1–2 mm. Achenes gray to yellow-brown or dark brown, trigonous-obovoid, 1–1.2(–1.5) mm, faces rugulose, papillate; tubercle a globose button. 2n = 60.

Phenology: Fruiting all year.
Habitat: Savanna, prairie, steppes, basic and acidic rock outcrops, mostly higher elevations
Elevation: 100–3000 m


V23 214-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico, West Indies, Central America, South America.


Bulbostylis juncoides is unquestionably the most polymorphic species of its complex in Bulbostylis and with a potential synonymy more elaborate than given here.



Lower Taxa

No lower taxa listed.