Genus names beginning with H:
112 genera
361 species
52 subspecies and varieties
361 species
52 subspecies and varieties
Show only taxa with photos
Hackelia – wild forget-me-not (9 species)
Hackelia – hackelia (9 species)
Hackelia – stickseed (9 species)
Haematomma (1 species)
Hafellia (1 species)
Halecania (2 species)
Halerpestes – buttercup (1 species)
Halogeton – halogeton (1 species)
Hamatocanthoscypha (2 species)
Hapalopilus (2 species)
Haplomitrium (1 species)
Harpanthus (1 species)
Harrimanella – harrimanella (1 species)
Harrimanella – moss-heather (1 species)
Harrimanella – mossplant (1 species)
Hebeloma (12 species)
Hedera – ivy (3 species)
Hedysarum – hedysarum (2 species)
Hedysarum – sweetvetch (2 species)
Helenium – sneezeweed (1 species)
Helianthella – helianthella (1 species)
Helianthella – little-sunflower (1 species)
Helianthus – sunflower (6 species)
Helicobasidium (1 species)
Helicogloea (1 species)
Heliopsis (0 species)
Heliotropium – heliotrope (1 species)
Helleborus (1 species)
Helminthosphaeria (1 species)
Helminthotheca (0 species)
Helotium (1 species)
Helvella (17 species)
Hemerocallis – daylily (0 species)
Hemieva (1 species)
Hemimycena (6 species)
Hemitomes – gnome-plant (1 species)
Hemizonella – miniature tarweed (1 species)
Henningsomyces (1 species)
Heppia (1 species)
Heracleum – cow-parsnip (2 species)
Heracleum – hogweed (2 species)
Herbertus (1 species)
Hericium (3 species)
Herniaria – rupturewort (1 species)
Herteliana (1 species)
Hesperis – rocket (1 species)
Hesperochiron – hesperochiron (2 species)
Hesperostipa – needle grass (1 species)
Hesperostipa – needle-and-thread (1 species)
Hesperostipa – porcupine-grass (1 species)
Heteranthera (1 species)
Heterobasidion (3 species)
Heterocodon – heterocodon (1 species)
Heterodermia (1 species)
Heterotextus (2 species)
Heterotheca – camphorweed (2 species)
Heterotheca – goldaster (2 species)
Heuchera – alumroot (5 species)
Heuchera – heuchera (5 species)
Heyderia (1 species)
Hibiscus – rosemallow (0 species)
Hieracium – hawkweed (17 species)
Hierochloe – sweetgrass (2 species)
Hierochloe – vanillagrass (2 species)
Hippuris – mare's-tail (2 species)
Hirschfeldia – shortpod mustard (1 species)
Hohenbuehelia (2 species)
Holcus – velvet-grass (2 species)
Holodiscus – ocean-spray (1 species)
Holosteum – jagged chickweed (1 species)
Honckenya – sea purslane (1 species)
Honckenya – seabeach sandwort (1 species)
Hordeum – barley (6 species)
Horkelia – horkelia (0 species)
Hornungia (1 species)
Hosackia – birdsfoot-trefoil (4 species)
Hosackia – deervetch (4 species)
Hosackia – lotus (4 species)
Howellia – water howellia (1 species)
Hulsea – alpinegold (1 species)
Hulsea – hulsea (1 species)
Humaria (1 species)
Humidicutis (1 species)
Humulus – hop (1 species)
Huperzia – firmoss (3 species)
Hyacinthoides – bluebells (2 species)
Hyalopeziza (1 species)
Hyaloscypha (2 species)
Hydnellum (14 species)
Hydnochaete (1 species)
Hydnomerulius (1 species)
Hydnotrya (5 species)
Hydnum (2 species)
Hydrilla (1 species)
Hydrocharis (1 species)
Hydrocotyle – marsh-pennywort (1 species)
Hydrocotyle – water-pennywort (1 species)
Hydrophyllum – waterleaf (3 species)
Hydropuctaria (0 species)
Hydropus (3 species)
Hygrobiella (1 species)
Hygrocybe (29 species)
Hygrophoropsis (2 species)
Hygrophorus (40 species)
Hylotelephium (0 species)
Hymenelia (2 species)
Hymenochaete (5 species)
Hymenogaster (5 species)
Hymenopappus – hymenopappus (1 species)
Hymenophyllum – filmy fern (1 species)
Hymenoscyphus (4 species)
Hyoscyamus – henbane (1 species)
Hypericum – St. John's-wort (12 species)
Hyphoderma (2 species)
Hyphodermella (1 species)
Hyphodontia (6 species)
Hypholoma (10 species)
Hypocenomyce (5 species)
Hypochaeris – cats-ear (2 species)
Hypochniciellum (1 species)
Hypochnicium (3 species)
Hypocrea (2 species)
Hypogymnia (16 species)
Hypomyces (5 species)
Hypotrachyna (2 species)
Hypoxylon (3 species)
Hypsizygus (1 species)
Hyssopus – hyssop (0 species)
Hysterangium (3 species)
