- Helianthemum bicknellii — plains frostweed
- Helianthemum canadense — Canada frostweed
- Hudsonia ericoides — golden-heather
- Hudsonia tomentosa — sand-heather
- Lechea intermedia — narrowleaf pinweed
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- Lechea maritima — beach pinweed
- Lechea mucronata — hairy pinweed
- Lechea pulchella — Leggett's pinweed
- Lechea stricta — upright pinweed
- Lechea tenuifolia — slender pinweed
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