genus Pilosella, Pilosella - genus of hairy perennial herbs with horizontal rhizomes and leafy or underground stolons; Eurasia and North Africa; often considered congeneric with Hieracium

herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

genus Hieracium, Hieracium - large genus of perennial hairy herbs of Europe to western Asia to northwestern Africa and North America; few are ornamental; often considered congeneric with Pilosella

Hieracium venosum, rattlesnake weed - a hawkweed with a rosette of purple-veined basal leaves; Canada to northern Georgia and Kentucky

Hieracium pilocella, mouse-ear hawkweed, Pilosella officinarum - European hawkweed having soft hairy leaves; sometimes placed in genus Hieracium

herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests