Bulbostylis juncoides

(Vahl) Kükenthal ex Osten

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

Synonyms: Bulbostylis arenaria Bulbostylis argentina Bulbostylis langsdorffiana Fimbristylis capillaris pilosa Fimbristylis juncoides Fimbristylis savannarum Oncostylis arenaria Oncostylis tenuifolia hirta Oncostylis tenuifolia nana Scirpus lorentzii
Basionyms: Schoenus juncoides
Found in FNA Volume 23. Treatment on page 135. Mentioned on page 132, 136.
FNA23 P36 Bulbbostylis juncoides pg 135.jpeg
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


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.



Facts about "Bulbostylis juncoides"
AuthorRobert Kral +
BasionymSchoenus juncoides +
Elevation100–3000 m +
HabitatSavanna, prairie, steppes, basic and acidic rock outcrops, mostly higher elevations +
IllustratorBarbara Alongi +
PhenologyFruiting all year. +
ReferenceNone +
SynonymBulbostylis arenaria +, Bulbostylis argentina +, Bulbostylis langsdorffiana +, Fimbristylis capillaris pilosa +, Fimbristylis juncoides +, Fimbristylis savannarum +, Oncostylis arenaria +, Oncostylis tenuifolia hirta +, Oncostylis tenuifolia nana + and Scirpus lorentzii +
Taxon nameBulbostylis juncoides +
Taxon parentBulbostylis +
Taxon rankspecies +
VolumeVolume 23 +