Fig 139. [Wild Parsnip. Pastinaca sativa] L.
![[Wild Parsnip. Pastinaca sativa]](#1525880611323293367_fig-139.jpg.id-8262679852512479593.wrap-0.html.html){kind=link}
Wild Parsnip. Pastinaca sativa L. Flowers yellow; achenes growing in pairs, 5–6 mm. long, with flat sides together, light brown, broad oval, much flattened, surrounded by a narrow thin ridge, 9-curved shallow ribs on one side. Introduced from Europe.
MILKWEED FAMILY. ASCLEPIADACEAE.
Fig 140.[Common Milkweed. Asclepias Syriaca] L.
![[Common Milkweed. Asclepias Syriaca]](#1525880611323293367_fig-140.jpg.id-8106295148022168682.wrap-0.html.html){kind=link}
Common Milkweed. Asclepias Syriaca L. Pods 8–12 cm. long, covered with soft spiny processes; seeds dull light brown, much flattened, narrowly obovate, 6.5–8 mm. long, the small end truncate, surrounded by a broad wrinkled wing-margin or hem. The concave side bears a slender vertical ridge (raphe) for two-thirds of its length; the convex side bearing fine, short ridges. Before escaping from the pods, the small end of the seed contains a cluster of spreading silky hairs (coma) 2–3 cm. long. Native of this country. Often troublesome and conspicuous in light soil, occasionally becoming small, pale, with slender branches and dying.
