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Galium album (white bedstraw)
...10-25 mm long, not glaucous and only somewhat paler on the abaxial surface, and pedicels relatively thicker, 0.08-0.2 mm thick).: Galium sylvaticum corolla mostly 2-3 ...
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Amaranthus powellii (Powell's amaranth)
...mostly 2.5--4 mm long, 1.2--2 times as long as the sepals (vs. A. powellii, with bracteoles mostly 4.5--6 mm long, mostly 2--3 times as long as the sepals).: Amaranthus hybridus ...
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Acorus calamus (single-veined sweetflag)
... 299.0 mm–1750.0 mm. Underground organs: the plant has a rhizome (a horizontal underground stem with roots growing from it). ...
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Galium labradoricum (northern bog bedstraw)
... 2.0 NA–2.0 NA. Sepal appendages (Oenothera): NA. Nectar spur: the flower has no ne...
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Lasthenia californica (California goldfields)
...11-20. Ray flowers: 16-25. Stem internode hair direction: the hairs point mostly upwards to outwar...
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Crataegus ideae (Ide's hawthorn)
...mostly 22-45 mm long and mostly 2-2.9 mm thick at the midpoint (vs. C. ideae, with thorns mostly 45-60 mm long and 1.9 to 2.1 mm thick at the midpoint).: Crataegus egglestonii ...
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Eleocharis uniglumis (one-glumed spikesedge)
...1.2 mm–2.0 mm. Inflorescence bracts: NA. Perianth composition: there is no perianth on the ...
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Aristida oligantha (oldfield threeawn)
...mm–25.0 mm. Glume veins: 1. Upper glume length: 12.0 mm–70.0 mm. Lemma awn base:...
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Medicago arabica (spotted medick)
...mm–20.0 mm. Sap color: the sap is clear. Leaflet number: 1.0 NA–3.0 NA. Plant he...
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Boechera laevigata (smooth rockcress)
...of 25 internodes to the lowest flowers, petals 5-7 mm long, 1.3-2 times as long as the sepals, and basal leaf blades serrate to pinnately lobed (vs. B. laevigata, with stems glaucous, with an average ...