Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · Signs, Planets, Birth
जातकम् १
स्थलांबु च पतिः खेटो लग्नाद्यावन्मिते गृहे ।तावंत एव तरवः स्थलजा जलजास्तथा ॥ ३८ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 55, verse 38.
The planet that is lord of the land or water sign: in as many houses as it stands from the lagna (rising sign), that many trees are land-born or water-born.
Simple meaning: The number of trees is told by how far the planet stands from the lagna.
अंतःसारा रवौ सौरे दुर्भगाः क्षीरिणो विधौ ।
Each planet shows what kind of tree: the Sun hard wood, the Moon milky, Mars thorny.
पुष्पिता भार्गवे स्निग्धाश्चंद्रेऽथ कटुकाः कुजे ।
Venus gives flowering trees. The Moon gives oily ones and Mars bitter ones.
कुर्याद्विलोमगो वापि स्वांशोक्तपरगैः समम् ।
Mars and the Moon cause the monthly cycle in women.