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

Page 25: 351 results for involucre

  • Euphorbia corollata (flowering spurge)

    ...and involucres pubescent (vs. E. corollata, with leaves of the cyathiescence green, those of the stem with linear to elliptic blades that are obtuse at the apex, and stems and involucres glabrous or p...

  • Cirsium muticum (swamp thistle)

    Cirsium muticum Michx.. swamp thistle. Non-Monocots Composites Facts About: Swamp thistle is a native thistle of wetland margins and saltmarsh margins. The swamp metalmark butterfly ...

  • Symphyotrichum frondosum (leafy annual American-aster)

    Symphyotrichum frondosum (Nutt.) Nesom. leafy annual American-aster. Non-Monocots Composites Facts About: Leafy annual American-aster, native to the western states and Baja Californi...

  • Lasthenia californica (California goldfields)

    ... involucre 4–6 mm tall, pappus of 2 or 3 narrow-lanceolate to lanceolate scales intermixed with shorter, truncate, fringed scales or absent and leaf blades entire to toothed (vs. L. califo...

  • Coreopsis tinctoria (golden tickseed)

    Coreopsis tinctoria Nutt.. golden tickseed. Non-Monocots Composites Facts About: Golden tickseed is a widely-grown garden ornamental, and has spread throughout the eastern United Sta...

  • Coreopsis tripteris (tall tickseed)

    Coreopsis tripteris L.. tall tickseed. Non-Monocots Composites Facts About: Tall tickseed, as the name suggests, is a tall plant that can reach 8 feet or more in height. Outside of i...

  • Centaurea scabiosa (greater knapweed)

    ... involucre 6-8 mm wide, the bracts with several prominent longitudinal veins, and fertile flowers 12-15 mm long (vs. C. scabiosa, with the involucre 18-25 mm wide, the bracts lacking promi...

  • Centaurea melitensis (Maltese knapweed)

    Centaurea melitensis L.. Maltese knapweed. Non-Monocots Composites Facts About: Maltese knapweed is native to the Mediterranean and a serious weed in some parts of the United States....

  • Erigeron philadelphicus (Philadelphia fleabane)

    Erigeron philadelphicus L.. Philadelphia fleabane. Non-Monocots Composites Facts About: Phildelphia fleabane is native to North America and introduced in Europe and Asia. There are t...

  • Solidago leiocarpa (Cutler's goldenrod)

    Solidago leiocarpa DC.. Cutler's goldenrod. Non-Monocots Composites Facts About: Cutler's goldenrod is a rare alpine species, found on ridges, plateaus and ravines in Maine...