two pellets of caterpillar frass

Botanical Nerd Word: Frass

Frass: The excrement of larvæ; also, the refuse left behind by boring insects.* This year’s huge populations of caterpillars are producing large amounts of caterpillar frass. While the caterpillars may be …

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Botanical Nerd Word: Actinomorphic

Actinomorphic: Having multiple planes of symmetry such that any line drawn through the middle produces two mirror-image halves, usually applied to flowers.* Compare with zygomorphic. This striking red Dahlia ‘Mystic Enchantment’ …

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Tulip tree flower

Botanical Nerd Word: Perfect

Perfect: Flowers that have functioning female and male reproductive parts.* The flowers of this Liriodendron tulipifera (tulip tree) have both male (pollen producing) stamens as well as female (pollen receiving) …

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wisteria flowers hanging down from a support.

Botanical Nerd Word: Raceme

Raceme: An inflorescence with pedicellate flowers borne on an unbranched elongated central axis.* The racemes of this wisteria are pendulous, hanging down through their supports. Each flower is attached to …

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