Asclepias cornuti.
1, Portion of rhizome. 2, Transverse section, natural size. 3, Transverse section, magnified. 4, Bast fibre. 5, Lacticiferous vessel. 6, Starch granules.
This image is from Asclepias Cornuti in the September issue of the AJP 1881.
Practical Herb Cards 2
Distance course
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