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Thursday - April 16, 2009
From: Hockley, TX
Region: Southwest
Topic: Plant Identification
Title: Plant identification
Answered by: Nan Hampton
QUESTION:
There is a plant growing on the side of the road near my home. The stalk of it is thistle like with many prickles. The flower on it is white and has 6 petals.ANSWER:
Your description sounds like Argemone albiflora ssp. texana (bluestem pricklypoppy) or possibly another prickly poppy, Argemone polyanthemos (crested pricklypoppy). Both occur in Harris County—the foliage of A. polyanthemos (crested pricklypoppy) is greener than A. albiflora ssp. texana (bluestem prickly poppy). There is still another white pricklypoppy, Argemone aurantiaca (Texas pricklypoppy), but its natural distribution is well to the west of Harris County.
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