| palea |
The upper of two bracts enclosing a grass flower.
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| palmate |
When pertaining to leaflets - attached to a single point on a stalk.
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| palp |
one of a pair of segmented fingerlike processes. Each maxilla (a mouth part) has one of these.
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| panicle |
A loose flower cluster, with each flower on its individual flower stalk.
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| panicles |
Plural of panicle - a flower cluster with each flower having its own stalk.
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| parasite |
In insects, an organism that feeds on another organism (host) while contributing nothing to the survival of the host.
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| parasitoid |
In insects, an organism that spends a portion of its life attached to or in a single host organism which it ultimately kills (and often consumes).
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| partial veil |
A layer of tissue that covers the gills or pores of the mushroom fruiting body during the initial stage of development; often forms an annulus after rupturing.
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| patagial mark |
The patagial mark is a dark bar at the leading edge of the inner underwing.
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| pedicel |
The stalk of a single flower.
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| pedipalps |
In spiders, a pair of appendages found in front of the first pair of legs; used in reproduction.
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| Peduncle |
The stalk of a flower.
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| perennial |
Completing its life cycle in 3 or more years.
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| perfoliate |
When pertaining to a leaf - completely surrounding the stem.
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| perigynia |
Plural of perigynium - a sack-like structure enclosing the ovary in sedges
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