Criado por Paul Rhoades
mais de 6 anos atrás
|
||
Questão | Responda |
Black henbane Hyoscyamus niger Solanaceae Up to 4ft tall, conspicuous midrib on leaves | |
Knotweed Polygonum spp. (AKA Fallopia spp.) Polygonaceae (Buckwheat family) 3-4 m at maturity | |
Image:
Elodea (binary/octet-stream)
|
Brazilian elodea Egeria densa Hydrocharitaceae (waterweed family) Spiny leaves, white flowers |
Buffalo-bur Solanum rostratum Solanaceae 2ft tall. Highly lobed leaves, many spines annual | |
Canada thistle Cirsium arvense Astereaceae | |
Common curpina Crupina vulgaris Asteracae winter annual, up to 4 ft, bristly edged leaves | |
European frogbit Hydrocharis morsus-ranae Hydrocharitaceae (waterweed family) Emergent free-floating aquatic annual leaves 1-2 in wide | |
Dalmatian toadflax Linaria dalmatica Scrophulariaceae (figwort family) Creeping perennial, up to 3ft high, taller with wider leaves than yellow toadflax | |
Diffuse knapweed Centaurea diffusa Asteraceae Usually white, sometimes pink/lavender flowers, annual or biennial, 3ft tall | |
Dyer's woad Isatis tinctoria Brassicaceae Biennial up to 4ft high | |
Fanwort Cabomba caroliniana Cabombaceae (water shields and fanworts) Aquatic perennial | |
Feathered mosquito fern Azolla pinnata Azollaceae (mosquito fern family) Aquatic free floating annual | |
Cield bindweed Convolvulus arvensis Convolvulaceae (morning glory family) One of the most noxious weed in ag. Perennial vine, can form dense mats | |
Image:
Rush (binary/octet-stream)
|
Flowering rush Butomus umbellatus Butomaceae (flowering rush family) Lanceolate leaves, triangular in cross section, up to 40 in long |
Giant hogweed Heracleum mantegazzianum Apiaceae (carrot or parsley family) Biennial or perennial, up to 15 ft tall, purple blockhed stems similar to cow parsnip which lacks purple | |
Giant salvinia Salvinia molesta Salviniaceae (floating fern family) Free floating aquatic, feather-like roots, stiff hairs on upper leaf surface that resemble eggbeaters | |
Hoary alyssum Berteroa incana Brassicaceae Annual or short lived perennial, multiple stems from base, up to 2ft tall, with grey-green star shaped hairs | |
Hoary cress (whitetop) Cardaria draba Brassicaceae Creeping perennial up to 2 ft tall, alternate lanceate leaves, small 4 petaled flowers | |
Quer criar seus próprios Flashcards gratuitos com GoConqr? Saiba mais.