Plants — 23,508 Species

Hairy Pennywort

Hydrocotyle hirta R.Br. ex A.Rich.

Hydrocotyle hirta, or hairy pennywort, is a native Australian flowering plant in the Araliaceae family.

Hairy Pennywort

Hydrocotyle moschata G.Forst.

Hydrocotyle moschata G.Forst. is a water pennywort native to New Zealand that grows on damp banks.

Whorled Pennywort

Hydrocotyle prolifera Kellogg

Whorled marshpennywort (Hydrocotyle prolifera) is an aquatic perennial flowering plant native to the Americas, found in wet habitats.

floating marsh pennywort

Hydrocotyle ranunculoides L.fil.

Hydrocotyle ranunculoides, or water/floating pennywort, is an aquatic plant targeted for biocontrol in Britain via a specialized South American weevil.

Sibthorp's Pennywort

Hydrocotyle sibthorpioides Lam.

Hydrocotyle sibthorpioides is a small flowering plant widely used in traditional medicine across multiple regions.

manyflower marshpennywort

Hydrocotyle umbellata L.

Hydrocotyle umbellata L. is an aquatic creeping/floating succulent herb with peltate lobed leaves, simple umbel inflorescences, and ribbed ellipsoid fruit.

Whorled Pennywort

Hydrocotyle verticillata Thunb.

Hydrocotyle verticillata is a flowering wetland plant widely used as an undemanding foreground plant in aquariums.

Marsh Pennywort

Hydrocotyle vulgaris L.

Hydrocotyle vulgaris L. is a small edible perennial marsh herb, grown in pond edges and aquariums.

Skyflower

Hydrolea corymbosa J.F.Macbr. ex Elliott

blue waterleaf

Hydrolea ovata Nutt. ex Choisy

Hydrolea ovata is a blue-flowered wetland perennial native to the southeastern US, used in wetland restoration.

great waterleaf

Hydrophyllum appendiculatum Michx.

Hydrophyllum appendiculatum is a biennial herb native to central eastern North America that grows in mesic forests and blooms from May to July.

Broad-leaf Waterleaf

Hydrophyllum canadense L.

Hydrophyllum canadense is a North American endemic perennial waterleaf native to eastern US and Canada, identifiable by a set of distinct morphological features.

ballhead waterleaf

Hydrophyllum capitatum Douglas ex Benth.

Hydrophyllum capitatum, ballhead waterleaf, is a North American perennial herb whose leaves and roots were eaten as cooked greens.

Fendler's Waterleaf

Hydrophyllum fendleri (A.Gray) A.Heller

Fendler's waterleaf (Hydrophyllum fendleri) is a flowering plant in the Hydrophyllaceae family found in the western United States, named for collector Augustus Fendler.

Large-leaf water leaf

Hydrophyllum macrophyllum Nutt.

Hydrophyllum macrophyllum is a perennial flowering plant native to the eastern United States, growing in mesic calcareous rocky forests.

western waterleaf

Hydrophyllum occidentale (S.Watson) A.Gray

Hydrophyllum occidentale is a rhizomatous perennial herb native to the western United States with varied habitats.

Pacific Waterleaf

Hydrophyllum tenuipes A.Heller

Hydrophyllum tenuipes A.Heller is a rhizomatous woodland plant that forms colonies and bears bristly-sepal flowers with long protruding stamens.

Virginia waterleaf

Hydrophyllum virginianum L.

Hydrophyllum virginianum L. is a rhizome-spreading herbaceous perennial found in wooded areas with variable spring flowers and spotted aging leaves.

tangled thread moss

Hygroamblystegium varium (Hedw.) Mönk.

Hygroamblystegium varium is a cosmopolitan moss that can grow in dark places using artificial light.

rough goose neck moss

Hylocomiadelphus triquetrus (Hedw.) Ochyra & Stebel

Hylocomiadelphus triquetrus is a common Hylocomiaceae moss with multiple common names found in boreal and Pacific Northwest forests.

stairstep moss

Hylocomium splendens (Hedw.) Schimp.

Hylocomium splendens is a stepped feathermoss with ecological roles, commercial uses, and applications in pollution monitoring.

pointed-leaved tick-trefoil

Hylodesmum glutinosum (Muhl. ex Willd.) H.Ohashi & R.R.Mill

Hylodesmum glutinosum is a flowering Fabaceae plant with multiple common names, found in eastern Canada, US central/eastern areas, and NE Mexico.

naked-flowered tick-trefoil

Hylodesmum nudiflorum (L.) H.Ohashi & R.R.Mill

Hylodesmum nudiflorum, or stemless tick trefoil, is a perennial forb native to eastern North America found in mature mesic oak forests.

Great Stonecrop

Hylotelephium maximum (L.) Holub