Samuel Gottlieb Gmelin

Salix excelsa is a species of flowering plant in the willow family Salicaceae. It is native to the Caucasus, Central Asia (except Kyrgyzstan), Iran, Afghanistan, and Pakistan, and has been introduced to the Levant, Yemen, the Himalayas, and India. It is closely related to Salix acmophylla. It is used as a street tree in Georgia and Iran.

Astragalus varius is a species of flowering plant in the family Fabaceae. It is native to Hungary, Romania, Bulgaria, Ukraine, European Russia, the northern Caucasus, western Siberia, and Kazakhstan. A perennial subshrub, it may be a product of reticulate speciation within section Dissitiflori.

Bryanthus is a monotypic genus of ornamental plant in the flowering plant family Ericaceae, with the sole species Bryanthus musciformis, native to Japan, Kamchatka, and the Kuril Islands. The genus was created in 1769. In 2012, the new tribe Bryantheae was proposed based on genetic analysis, containing the genera Bryanthus and Ledothamnus.

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Nymphoides peltata, the fringed water-lily is perennial, rooted aquatic plant with floating leaves of the family Menyanthaceae. Synonyms include Menyanthes nymphoides L., Villarsia nymphoides, Limnanthemum peltatum S.G.Gmel., Nymphoides nymphoides (L.) Britton, and other vernacular names include yellow floating heart, floating heart, water fringe, and entire marshwort. It is native throughout most of Europe (excluding Ireland and Scandinavia) and temperate Asia, and locally in Algeria in northwest Africa. It has been spread by human cultivation outside its native range and is now naturalised

Sceptridium multifidum is a fern species in the Ophioglossaceae (Adder's tongue family), known by the common names leathery grapefern and leathery moonwort.

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Allium akaka is a species of onion native to Iran. formerly included Several infraspecific names have been coined referring to taxa now generally considered distinct species not to be included in Allium akaka. We give links here to help you locate appropriate information Allium akaka subsp. haemanthoides (Boiss. & Reut. ex Regel) Wendelbo, now synonym of Allium haemanthoides Boiss. & Reut. ex Regel Allium akaka f. major Turrill, now synonym of Allium ubipetrense R.M.Fritsch Allium akaka var. regale Tamamsch, now synonym of Allium materculae Bordz. Allium akaka subsp. shelkovnikovii (Grossh.)

Cryptogramma stelleri, common names slender cliff-brake, fragile rock-brake, slender rock-brake, and Steller's rockbrake, is a plant found in North America. It is listed as endangered in Connecticut, Massachusetts, New Jersey, and Pennsylvania. It is listed as threatened in Maine and New Hampshire, as exploitably vulnerable in New York (state) and as sensitive in Washington (state). Cryptogramma stelleri is known to be able to use artificial light to grow in places which are otherwise devoid of natural light, such as Crystal Cave in Wisconsin.

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