Apiaceae A: 00518301 Cicuta maculata Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, near Administr... I. Hay 1978-7-12
A: 00518302 Cicuta maculata Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, near Administr... I. Hay 1978-7-12
Asteraceae A: 00767756 Heliopsis helianthoides (Linnaeus) Sweet USA: Massachusetts Boston: Jamaica Plain I. Hay 1987-8-10
A: 00354623 Solidago bicolor Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, South street t... I. Hay 1982-9-6
A: 00354627 Solidago caesia Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, South Street T... I. Hay 1982-9-6
A: 00354646 Solidago juncea Aiton USA: Massachusetts Boston: The Arnold Arboretum, South St. trac... I. Hay 1982-9-6
A: 00354658 Solidago rugosa Miller USA: Massachusetts Boston: The Arnold Arboretum, South Street T... I. Hay 1982-8-18
A: 00354659 Solidago rugosa Miller USA: Massachusetts Boston: The Arnold Arboretum, South Street T... I. Hay 1982-8-18
Cannabaceae A: 00423745 Humulus japonicus Siebold & Zuccarini USA: Massachusetts Boston: The Arnold Arboretum, South St. trac... I. Hay 1982-8-18
A: 00423745 Humulus sp. USA: Massachusetts Boston: The Arnold Arboretum, South St. trac... I. Hay 1982-8-18
Juncaceae A: 00348721 Juncus tenuis Willdenow USA: Massachusetts Boston: The Arnold Arboretum, through the Fr... I. Hay 1982-8-27
Papaveraceae A: 00415360 Chelidonium majus Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, in Peters Hill... I. Hay 1987-5-21
Phytolaccaceae A: 00415453 Phytolacca americana Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, Lilac Collecti... I. Hay 1979-6-7
Poaceae A: 00415500 Agrostis perennans (Walter) Tuckerman USA: Massachusetts Boston: The Arnold Arboretum, South Street t... I. Hay 1982-9-7
A: 00415570 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Massachusetts Boston: The Arnold Arboretum, under the Oak... I. Hay 1982-9-7
A: 00387769 Dichanthelium acuminatum fasciculatum (Torrey) Freckmann & Lelong USA: Massachusetts Boston: The Arnold Arboretum, South Street T... I. Hay 1982-9-7
A: 00415581 Digitaria ischaemum (Schreber) Muhlenberg USA: Massachusetts Boston: The Arnold Arboretum, South Street T... I. Hay 1982-9-6
A: 00415585 Digitaria sanguinalis (Linnaeus) Scopoli USA: Massachusetts Boston: The Arnold Arboretum, 380 South St.,... I. Hay 1982-8-27
A: 00415591 Echinochloa muricata (P. Beauvois) Fernald USA: Massachusetts Boston: The Arnold Arboretum, 380 South St.,... I. Hay 1982-8-27
A: 00387698 Leersia oryzoides (Linnaeus) Swartz USA: Massachusetts Boston: The Arnold Arboretum, opposite the a... I. Hay 1982-9-2
A: 00387769 Panicum acuminatum Swartz USA: Massachusetts Boston: The Arnold Arboretum, South Street T... I. Hay 1982-9-7
A: 00387717 Panicum capillare Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, along South ST... I. Hay 1982-9-7
A: 00387720 Panicum dichotomiflorum Michaux USA: Massachusetts Boston: The Arnold Arboretum, at edge of Oak... I. Hay 1982-9-7
A: 00387757 Setaria viridis (Linnaeus) P. Beauvois USA: Massachusetts Boston: The Arnold Arboretum, at edge of Oak... I. Hay 1982-9-7
A: 00387758 Setaria viridis (Linnaeus) P. Beauvois USA: Massachusetts Boston: The Arnold Arboretum, 380 South St.,... I. Hay 1982-8-27
Polygonaceae A: 00375517 Fallopia scandens (Linnaeus) Holub USA: Massachusetts Boston: The Arnold Arboretum, South Street t... I. Hay 1982-9-6
A: 00375845 Persicaria lapathifolia (Linnaeus) Delarbre USA: Massachusetts Boston: The Arnold Arboretum, along Oak Path... I. Hay 1982-8-17
A: 00375834 Persicaria longiseta (Bruijn) Kitagawa USA: Massachusetts Boston: The Arnold Arboretum, south east end... I. Hay 1982-8-18
A: 00375853 Persicaria orientalis (Linnaeus) Assenov USA: Massachusetts Boston: The Arnold Arboretum, across from Ad... I. Hay 1982-9-2
A: 00375856 Persicaria pensylvanica (Linnaeus) M. Gomez USA: Massachusetts Boston: The Arnold Arboretum, across from Ad... I. Hay 1982-8-10
A: 00375864 Persicaria sagittata (Linnaeus) H. Gross USA: Massachusetts Boston: The Arnold Arboretum, South St. Trac... I. Hay 1982-8-12
A: 00375834 Polygonum caespitosum Blume USA: Massachusetts Boston: The Arnold Arboretum, south east end... I. Hay 1982-8-18
A: 00375845 Polygonum lapathifolium Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, along Oak Path... I. Hay 1982-8-17
A: 00375853 Polygonum orientale Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, across from Ad... I. Hay 1982-9-2
A: 00375856 Polygonum pensylvanicum Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, across from Ad... I. Hay 1982-8-10
A: 00375864 Polygonum sagittatum Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, South St. Trac... I. Hay 1982-8-12
A: 00375517 Polygonum scandens Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, South Street t... I. Hay 1982-9-6
Rosaceae A: 00359510 Geum canadense Jacquin USA: Massachusetts Boston: The Arnold Arboretum, across from Ad... I. Hay 1982-8-10
A: 00443627 Rubus flagellaris Willdenow USA: Massachusetts Boston: The Arnold Arboretum, South St. trac... I. Hay 1982-8-25
A: 00443627 Rubus sp. Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, South St. trac... I. Hay 1982-8-25
Solanaceae A: 00518215 Datura sp. USA: Massachusetts Boston: The Arnold Arboretum, near Oak Path ... I. Hay 1981-8-26
A: 00518216 Datura sp. USA: Massachusetts Boston: The Arnold Arboretum, near Oak Path ... I. Hay 1981-8-26
A: 00518215 Datura stramonium Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, near Oak Path ... I. Hay 1981-8-26
A: 00518216 Datura stramonium Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, near Oak Path ... I. Hay 1981-8-26
Verbenaceae A: 00518362 Verbena sp. USA: Massachusetts Boston: The Arnold Arboretum, South St. trac... I. Hay 1982-8-25
A: 00518362 Verbena urticifolia Linnaeus USA: Massachusetts Boston: The Arnold Arboretum, South St. trac... I. Hay 1982-8-25