Lithospermum canescens
 
Hoary Puccoon

Short-Styled Flower in Ground

Whitesand Regional Park
04-June-2010

This species has two types of flowers.  One type has a long style with the stamens attached nearer the base of the corolla tube.  The other type has a short style with the stamens attached nearer the apex of the corolla tube.  Plants with more than one style length are known as heterostylous.

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Canescens: Answers to key questions in Budd's Flora leading to this species. 
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perennial plants; NOT [annual plants]

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plant not very leafy; NOT [plant very leafy]

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leaves linear to oblong; NOT [leaves lanceolate]

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flowers bright yellow or orange; NOT [flowers dull greenish yellow]

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corolla tube longer than calyx; NOT [corolla tube not longer than calyx]

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lobes of corolla entire, neither fringed nor toothed; NOT [lobes of corolla either fringed or toothed]

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nutlets smooth; NOT [nutlets wrinkled]

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nutlets white; NOT [nutlets brown]

 

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Lithospermum: Answers to key questions in Budd's Flora  and Flora of Alberta leading to this genus. 
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plants usually rough-hairy; NOT [plants glabrous]

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upper leaves alternate; NOT [upper leaves opposite or in whorls of three]

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leaves oblong-lanceolate; NOT [leaves ovate-lanceolate]

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flowers several-many, in axillary or terminal, frequently raceme-like, cymes; NOT [flowers mostly solitary (2-4), axillary] (FOA)

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flowers in leafy cymes; NOT [flowers in non-leafy cymes, with or without small bracts] (FOA)

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flowers larger, 8-15 mm across; NOT [flowers small, 3-5 mm across]

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corolla yellow or orange; NOT [corolla white or greenish white]

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corolla lobes rounded; NOT [corolla lobes acute]

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style included; NOT [style conspicuously exserted]

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ovary deeply divided into 4 lobes; NOT [ovary merely grooved]

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style arising from the center of (and between) the ovary lobes; NOT [style arising from the top of the ovary]

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nutlets lacking hooked prickles

 

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Boraginaceae: Answers to key questions in Budd's Flora  leading to this family. 
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herbs; NOT [shrubs or trees]

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plants green or with some chlorophyll; NOT [plants parasitic or saprophytic, without chlorophyll]

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plants WITHOUT milky juice

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plants NOT twining

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flowers NOT in heads or spikes; NOT [flowers in long or short spikes], NOT [flowers in heads or in form resembling a head]

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inflorescence usually scorpioid

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flowers with two floral rings, but with the petals wholly or partly united forming a tube or bell]

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corolla regular; NOT [corolla irregular]

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stamens alternating with corolla lobes, or twice their number; NOT [stamens directly in front of corolla lobes]

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stamens 4 or 5; NOT [stamens 8 or 10]

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style from center of lobes of ovary; NOT [style terminal]

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ovary superior; NOT [ovary inferior]

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fruit with 4 nutlets; NOT [fruit a berry or capsule]