Data mode


Sign up

Copy permalink to share

Desmanthus virgatus (Linnaeus) Willdenow. Wild Tantan. Phen: (Jan-) Apr-Nov (-Dec). Hab: Longleaf pine sandhills, shell middens, hammocks, scrub, mesquital, disturbed areas. Dist: FL peninsula (north to Levy County); West Indies; nw. LA and c. Texas south through Mexico and Central America to South America. The location in nw. LA (Caddo Parish) is adventive (MacRoberts & MacRoberts 2011b).

Origin/Endemic status: Native

Taxonomy Comments: There is a case to be made for recognizing (at least at varietal rank) two taxonomic entities, but the choice is complicated by the lack of available names with correct application. One entity, the usual one in our region, is decumbent to prostrate, with petiolar gland erect, circular, and < 0.5 mm in diameter, leaflets in 8-16 pairs, and fruits 2-3.5 (rarely to 5 cm) long; this has been called "depressus", but the type of "virgatus" applies to this entity. More tropical and present in our area only as a waif, is an erect shrub (to 1.5 m tall), with a large (> 1 mm long), flattened, sessile, elliptical petiolar gland, 10-20 leaflet pairs, and fruits 3-7 cm long; this has been called "virgatus", but with that epithet accurately applied to the "depressus" entity (see Luckow 1993), this entity is apparently without a name if recognized separately.

Synonymy: = Fl3, FNA11.1, K3, K4, Mex, NcTx, WH3, Luckow (1993); > Acuan depressa (Humb. & Bonpl. ex Willd.) Kuntze – S13; > Acuan depressum (Humb. & Bonpl. ex Willd.) Kuntze – S; > Acuan virgatum (L.) Medik. – S; > Desmanthus virgatus (L.) Willd. var. depressus (Humb. & Bonpl. ex Willd.) B.L.Turner – SE3, Tx, Isely (1998); > Desmanthus virgatus (L.) Willd. var. virgatus – SE3, Isely (1998)

Show in key(s)

Show parent genus

Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACU
  • Great Plains: FACU

Heliophily ?: 9

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.

image of plant© Keith Bradley [image randomly selected] | Original Image ⭷


See something wrong or missing on about Desmanthus virgatus? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.

Cite as...