The Great Lakes botanist : a journal of North American botany - Michigan Botanical Club, (Michigan Botanical Club, 2017)

The Great Lakes botanist : a journal of North American botany - Michigan Botanical Club, (Michigan Botanical Club, 2018)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1980)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1983)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1985)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1988)

Green thumb news - Denver Botanic Gardens. (Educational Dept., Denver Botanic Gardens, Inc.], 1995)

Green thumb news - Denver Botanic Gardens. (Educational Dept., Denver Botanic Gardens, Inc.], 2000)

Green thumb newsletter - Denver Botanic Gardens. (Denver Botanic Gardens, 1975)

Guernsey breeders' journal - American Guernsey Cattle Club. (American Guernsey Association, 1914)

Guide leaflet - American Museum of Natural History (The Museum, 1914)

Guide to the spring flowers of Minnesota, field and garden - Clements, Frederic E. (Frederic Edward), 1874 -1945 (University of Minnesota, 1913)

Guideline for wetland establishment on reclaimed oil sands leases - Alberta. Alberta Environment. (Alberta Environment, 2008)

Haliburton flora : an annotated list of the vascular plants of the County of Haliburton, Ontario - Royal Ontario Museum. (Royal Ontario Museum, 1991)

Halteres - ANeT-India. (Organisation for Conservation and Study of Biodiversity in collaboration with ANeT-India, 2013)

Halteres - ANeT-India. (Organisation for Conservation and Study of Biodiversity in collaboration with ANeT-India, 2015)

A hand-book to the flora of Ceylon : containing descriptions of all the species of flowering plants indigenous to the island, and notes on their history, distribution, and uses : with an atlas of plates illustrating some of the more interesting species - Hooker, Joseph Dalton, 1817 -1911 (Dulau, 1893)

A handbook of Nebraska grasses; with illustrated keys for their identification, together with a general account of their structure and economic importance - Link, George K. K. (George Konrad Karl), 1888 - (1915)

Handbook of the British flora : a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles : for the use of beginners and amateurs - Hooker, Joseph Dalton, 1817 -1911 (L. Reeves, 1887)

Handbook of the British flora; a description of the flowering plants and ferns indigenous to, or naturalized in the British Isles. For the use of beginners and amateurs - Bentham, George, 1800 -1884 (L. Reeve, 1865)

Handbuch der palaeontologie - Schimper, Wilhelm-Philippe, 1808 -1880 (R. Oldenbourg, 1890)

The handy horse book, a manual for every American horse-owner - Thorne, Chas. E. (Charles Embree), 1846 -1936 (Mast, Crowell & Kirkpatrick, 1883)

he bei mu lan wei chang zhi wu zhi 河北木兰围场植物志 - Zhao, Jiancheng & Kong Zhaopu 赵建成, 孔照普 (ke xue chu ban she科学出版社, 2008)

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1910)

Das Herbarienbuch : Erklärung des natürlichen Pflanzensystems, systematische Aufzählung, Synonymik und Register der bis jetzt bekannten Pflanzengattungen ... = Repertorium herbarii, sive, Nomenclator generum plantarum systematicus synonymicus et alphabeticus ad usum practicum accommodatus ... - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (In der Arnoldischen Buchh, 1841)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1996)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1998)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1999)

Der Hercynische Florenbezirk : Grundzüge der Pflanzenverbreitung im mitteldeutschen Berg- und Hügellande vom Harz bis zur Rhön, bis zur Lausitz und dem Böhmer Walde - Drude, Oscar, 1852 -1933 (W. Engelmann, 1902)

Historia naturalis bulgarica - Bŭlgarska akademii︠a︡ na naukite. (Bulgarska akademiia na naukite, 1995)

Historia naturalis bulgarica - Bŭlgarska akademii︠a︡ na naukite. (Bulgarska akademiia na naukite, 1997)

History of systematic botany in Australasia : proceedings of a symposium held at the University of Melbourne, 25-27 May 1988 - Short, P. S. (Philip S.) (Australian Systematic Botany Society, 1990)

Holland bulbs for fall planting : May-flowering tulips grouped by color - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Stanek's Landscape Nurserymen, 1949)

Home of Seabrook Nurseries, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seabrook Nurseries, 1941)

Horticultural guide : spring 1893 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Currie Bros, 1894)

Host plants of leaf beetle species occurring in the United States and Canada : (Coleoptera: Megalopodidae, Orsodacnidae, Chrysomelidae, excluding Bruchinae) - Coleopterists Society. (Coleopterists Society, 2004)