Your help is appreciated. We depend on donations to help keep this site free and up to date for you. Can you please help us?

Donate

Native Plant Trust: Go Botany Discover thousands of New England plants

Page 20: 350 results for involucre

  • Castanea sativa (Spanish chestnut)

    ...the involucre has spines. Leaf blade base shape: the base of the leaf blade is rounded. Leaf blade base symmetry: ...

  • Helianthus strumosus (pale-leaved sunflower)

    Helianthus strumosus L.. pale-leaved sunflower. Non-Monocots Composites Facts About: The Iroquois used a decoction of the roots of pale-leaved sunflower to treat intestinal worms. ...

  • Bidens alba (white beggar-ticks)

    Bidens alba (L.) DC.. white beggar-ticks. Non-Monocots Composites Facts About: White beggar-ticks is an annual originating in tropical America. It has become invasive throughout much...

  • Quercus ilicifolia (scrub oak)

    ...the involucre has no spines. Leaf blade veins: the leaf blade has one main vein running from the base toward the tip. Leaf m...

  • Leontodon saxatilis (little hawkbit)

    ...and involucre 10–18 mm tall during anthesis (vs. L. saxatilis, with the pappus of inner flowers with an inner series of plumose bristles and an outer series of scales that may be tipped with a scabrou...

  • Scorzoneroides autumnalis (fall-dandelion)

    ...areas.1a.  Involucre tomentose-puberulent to glabrous, sometimes with a few, longer, pale to dark hairs; reproductive stems 5–60 cm tall, with (1–) 2–7 capitula 
 … 1a. S. autumnalis ...

  • Castanea dentata (American chestnut)

    ...an involucre). Pseudoterminal bud: the tips of the branches have pseudoterminal buds. Twig scales: ...

  • Lactuca canadensis (tall lettuce)

    ... involucre 15–22 mm tall in fruit, cypsela body 7–10 mm long including the beak, and pappus 8–12 mm long (vs. L. Canadensis, with the involucre 10–15 mm tall in fruit, cypsela body 4.5–6 m...

  • Nigella damascena (devil-in-the-bush)

    ...an involucre and ultimate segments of upper leaves broad-linear to narrow-lanceolate (vs. N. damascene, with the inflorescence subtended by an involucre composed of a whorl of bracts that are pinnatel...

  • Helianthus decapetalus (thin-leaved sunflower)

    Helianthus decapetalus L.. thin-leaved sunflower. Non-Monocots Composites Facts About: The seeds of thin-leaved sunflower are eaten by gamebirds and songbirds. Muskrats eat the leave...