Dichanthelium fusiforme (A.S. Hitchcock) Harvill. Common name: Spindle-fruited Witchgrass. Phenology: May-Nov. Habitat: Longleaf pine sandhills, other dry to moist sand of open pine and pine-oak woods and clearings. Distribution: E. NC south to FL, west to MS and w. LA (perhaps most abundant in FL); West Indies; Mexico, Central America, and Venezuela. Previous reports from se. VA were based on a misidentified specimen.
ID notes: Autumnal blades often flat. The autumnal form of D. oligosanthes var. oligosanthes can be very similar to D. fusiforme if the vernal blades of the former are missing. They are best separated by ligule length (0.5-1 mm in fusiforme, 1.5-3 mm in oligosanthes) and the more attenuated ends of the fusiforme spikelet.
Origin/Endemic status: Native
Synonymy ⓘ: = Va, LeBlond (2017a) in Weakley et al (2017); = Dichanthelium aciculare (Desv. ex Poir.) Gould & C.A.Clark ssp. fusiforme (Hitchc.) Freckmann & Lelong — FNA25; = Panicum fusiforme Hitchc. — F, G, HC, RAB, S, SFla; < Dichanthelium aciculare (Desv. ex Poir.) Gould & C.A.Clark — FlGr, K4, Mex, Gould & Clark (1978); < Panicum aciculare Desv. ex Poir. — C. Basionym: Panicum fusiforme Hitchc. 1909
Links to other floras: = Dichanthelium aciculare ssp. fusiforme - FNA25
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACU (taxonomic split from wetland indicator species)
- Great Plains: FACU (taxonomic split from wetland indicator species)
- Midwest: FACU (taxonomic split from wetland indicator species)
- Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)
Heliophily ⓘ: 7
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© Jay Horn source | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Jay Horn source | Original Image ⭷Feedback
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