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

Page 12: 350 results for involucre

  • Rubiaceae: Dichotomous Key

    ...an involucre composed of a whorl of basally connate leaves 5b. Sepals obsolete; corolla white, green-white, yellow, yellow-green, green-purple, or purple, or blue-purple in Asperula, usua...

  • Antennaria: Dichotomous Key

    ...Carpellate involucre 5–7 mm tall; central corollas 2.5–4.3 mm long; body of cypselas 1–1.5 mm long; mature pappus 4–5.5 mm long 4b. Carpellate involucre (6–) 7–10 mm tall; central corolla...

  • Cyperaceae: Dichotomous Key

    Cyperaceae: Dichotomous Key. You are here: Dichotomous Key > Cyperaceae. Cyperaceae. 1a. Perianth at maturity composed of...

  • Caprifoliaceae: Dichotomous Key

    Caprifoliaceae: Dichotomous Key. You are here: Dichotomous Key > Caprifoliaceae. Caprifoliaceae. 1a. Plants herbaceous or...

  • Quercus robur (English oak)

    ...carpellate involucre concealing usually +/- 1/4 of the nut (vs. Q. roburleaf blades cordate at the base, on petioles 4–8 mm long, nut on a peduncle mostly 35–65 mm long, and carpellate involucre conce...

  • Fagus sylvatica (European beech)

    ...carpellate involucre straight to recurved (vs. F. sylvatica, with leaf blades crenate-dentate, with 4-9 pairs of lateral veins, and prickles of involucre straight to upcurved).: Fagus gran...

  • Cyperus lupulinus (Great Plains flatsedge)

    Cyperus lupulinus (Spreng.) Marcks. Great Plains flatsedge. Graminoids Remaining Graminoids Facts About: Great Plains flatsedge prefers open fields, roadsides and disturbed areas on ...

  • Centaurea nigra (black knapweed)

    Centaurea nigra L.. black knapweed. Non-Monocots Composites Facts About: Black knapweed can be an aggressive weed. It was introduced from Europe as an ornamental plant as well as in ...

  • Question: Thanks so much for your answer about Eutrochium ID! I wanted to …

    Question: Thanks so much for your answer about Eutrochium ID! I wanted to ask a follow-up question: Is capitulum on Joe Pye one of the small floral structures that makes up the bigger corymb? Would I ...

  • Question: Can you confirm or correct the ID of a plant in my …

    Question: Can you confirm or correct the ID of a plant in my garden? It was labeled as Helianthus divaricatus when I bought it but the characteristics don't match. Stems and leaves are scabrous (...