Taxa named by William Jackson Hooker

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thumb|left|Leaves are mostly basal with long petiole (botany)|petioles, entire as in this Balsamorhiza careyana individual, or with one to three pinnate lobes Balsamorhiza is a genus of plants in the family Asteraceae known commonly as balsamroots. These are perennials with fleshy taproots and caudices bearing erect stems and large, basal leaves. Atop the tall stems are showy yellow sunflower-like blooms. Balsamroots are native to western North America (United States and Canada).

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Adenostoma is a genus of shrubs in the rose family (Rosaceae) containing only two species, chamise (Adenostoma fasciculatum) and redshanks (Adenostoma sparsifolium). Both are native to the Californias.

African tree species

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Whitfieldia is a genus of flowering plants in the family Acanthaceae. It includes 13 species of erect or scrambling shrubs native to tropical Africa. The greatest species diversity is in the Guineo-Congolian rainforests of western and central Africa.

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species of annual herb native to California, Oregon, and Baja California

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Hemithrinax is a genus of palms that is endemic to eastern Cuba. It comprises three species and one variety and was previously included within the genus Thrinax.

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species of eucalyptus endemic to Western Australia

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genus of plants

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Hodgsonia is a small genus of fruit-bearing vines in the family Cucurbitaceae.

Nardophyllum is a genus of South American flowering plants in the tribe Astereae within the family Asteraceae.

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Thysanocarpus is a small genus of plants in the family Brassicaceae known generally as fringepods or lacepods. These are small, erect annual herbs. The flat fruit capsule is generally round or oval-shaped with a wing that goes all the way around the pod, giving it a fringed look. The fruits hang from most of the length of the stem. The plants are native to the western United States, British Columbia, and northwestern Mexico.

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Tweedia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1835. The genus is native to South America. An ornamental plant, Oxypetalum coeruleum, formerly included in this genus is commonly referred to as "tweedia".

Herpolirion is a genus of perennial herbs in the family Asphodelaceae, subfamily Hemerocallidoideae. The sole species is Herpolirion novae-zelandiae, commonly known as sky lily. It is native to New Zealand as well as the states of New South Wales, Victoria and Tasmania in Australia.

Tropidocarpum is a genus of flowering plants in the family Brassicaceae. There are two to four species, one of which is extremely rare. Tropidocarpum capparideum, the caper-fruited tropidocarpum, is a plant endemic to California generally considered to be extinct since the 1950s, but has been reported since. Specimens were collected at Fort Hunter Liggett, California, in 2000 and 2001. Its status is currently in debate. The other member of the genus, the dobie pod, T. gracile, is a common mustardlike plant in California and Baja California. Two other plants in separate monotypic genera, Twisse

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Heterophyllaea is a genus of two species of shrubs in the family Rubiaceae, native to Bolivia and Argentina.

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species of angiosperm