Allium elmendorfii is a species of wild onion endemic to Texas. It is known only from Bexar, Frio, Wilson, and Atascosa Counties. It is generally found on sandy soils, specifically "well-drained sands, Eocene, Pleistocene and Holocene sands, and has only a 400 x 160 km range." Its habitat is "Forest/Woodland, Savanna, Woodland - Hardwood" and specifically "{g}rassland openings in post oak (Quercus stellata) woodlands on deep, well-drained sands derived from Queen City and similar Eocene formations."
Allium elmendorfii is a perennial bulb-forming herb with clusters of small bulbils around the roots, but without the dry papery outer layers that the domesticated onions have. It has an umbel of 10-30 erect to spreading flowers, each with 6 white to pinkish tepals about 5 cm (2 inches) long, flowering from March to April or May.
Distribution
U.S. Distribution by County |
*Extirpated/possibly extirpated
State |
County Name (FIPS Code) |
TX |
Atascosa (48013)*, Bee (48025)*, Bexar (48029)*, Gillespie (48171)*, Jim Wells (48249), Kenedy (48261)*, Live Oak (48297), Llano (48299)*, Nueces (48355), Refugio (48391), San Patricio (48409), Willacy (48489)*, Wilson (48493) |
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Uses
Allium elmendorfii is related to the common domesticated onion, Allium cepa L., and has a similar aroma. It can be eaten in the same manner, as can most of the members of the genus.