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Page 6: 350 results for involucre

  • Euphorbia: Dichotomous Key

    ...stamens; involucres 0.6–0.9 mm in diameter 5b. Faces of seed smooth or obscurely roughened or pitted; each cyathium with 5–12 (–18) stamens; involucres 0.8–1.2 mm in diameter ...

  • Betulaceae: Dichotomous Key

    ...ridges; involucre a firm or woody scale, an enclosing husk, or an 
inflated, bladder-like bract; winter buds ± terete in cross-section 2a. Involucre an inflated, bladder-like bract, the c...

  • Asteraceae Group 4: Dichotomous Key

    ...5a. Involucre with 3 or 4 series of foliaceous bracts of ± equal length; style appendages acute to acuminate (in part) 5b. Involucre with green but not at all foliaceous bracts, the bract...

  • Eurybia: Dichotomous Key

    ...stem; involucre slender-cylindric, 5.5–7.5 mm tall; leaves at base of plant relatively firmer, often with rectangular basal sinuses, with mostly 15–30 teeth per margin 3b. Plants without ...

  • Coreopsis: Dichotomous Key

    Coreopsis: Dichotomous Key. You are here: Dichotomous Key > Asteraceae > Asteraceae Grou...

  • Question: This is a blue aster in my massachusetts garden.part sun.dry and was …

    Question: This is a blue aster in my massachusetts garden.part sun.dry and was purchased at garden in woods 15yrs ago. i want to get more! They suggested I ask you as they are not sure. Unlike a.novi,...

  • Question: Found this "aster" along the edge of disturbed area, very dry near …

    ...the involucre (the series of greenish bracts found on each flower head that are positioned just below the ray flowers). As well, a measurement of the height of the involucre is also needed (measuring...

  • Question: Hello! I came across a Helianthus in central NY growing in a …

    Question: Hello! I came across a Helianthus in central NY growing in a large patch in a partial opening in the canopy possibly caused by a landslide in the past. Lots of limestone around. It seems to ...

  • Sonchus: Dichotomous Key

    ...flower; involucre 14–22 mm tall in fruit 1b. Plants annual, with taproots; capitula 1.5–2.5 cm wide in flower; involucre 9–13 mm tall 
in fruit 2a. Cypsela body with 3 (–5) r...

  • Leontodon: Dichotomous Key

    ...crown; involucre 6–11 mm tall during anthesis, calyculate 1b. Pappus of inner flowers and outer flowers alike, well-developed, with an inner series of plumose bristles and an outer series...