ENCS407 Study Guide - Quiz Guide: Ambrosia Psilostachya, Heliantheae, Asteraceae
10 Nov 2018
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Ambrosia deltoidea canescent below: shrub, monoecious, leaves alternate, petioled, deltoid shaped. Leaves green above: opposite leaves, deeply, narrowly lobed lobes rounded when juvenile, sharp @ maturity leaves with short stiff hairs. Balsamorhiza sagittata: basal clumps of leaves w/ long petioles, large resinous taproot, large flower clusters, small stem leaves. Hymenoxys odorata a n: leaves deeply pinnate 3-15 linear divisions, leaves glandular hairy and pitted, enlarged node where stem meets the root. Ratibida columnifera: stems ribbed, with bristle like hairs. Wyethia mollis: large leaves lanceolate or oblong-ovate, densely hairy leaves, resin dotted leaves. Senecio flaccidus: alternate leaves, divided 5-9x, densely woolly haired, leaf margins rolled inwards. Senecio serra: leaves lanceolate to linear, margins serrate. Tetradymia canescens: herbaceous above, woody below, simple, alternate leaves, woolly, linear, entire leaves w/ prominent midrib, alternate smooth and hairy spots on twigs. Agoseris glauca: all basal leaves, linear with distinct white midrib. Taraxacum officinale p i: leaves crowded in a basal rosette, dandelion!
